by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 263-323 192-236
500g Pot Life ASTM D2471minutes 211-259 138-170
Viscosity MixedASTM D2196 cP 1508 1046
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.75:1 3.30:1
Volume 3.00:1
Volume Range 3.14:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.45 (1.13)
Resin lb/gal (g/cc)9.69 (1.16)
Hardener lb/gal (g/cc)7.86 (0.94)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:26.6 100:30.3
100:31.9 100:36.3
100:33.3
100:28.6
Resin:Hardener
6300
121
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
358-438
276-338
1885
High temperature, high performance epoxy
formulation for synthetic composite mold and
tooling manufacture.
T
g as high as 350 F (176 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Medium viscosity for wet out of synthetic
composite fabrics; especially effective with
carbon fiber.
Extra slow cure speed hardener provides 8
to 10 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 14 to 20
hours at room temperature.
Optimized for hand wet out and machine
impregnation in contact molding, wet vacuum
bagging and Light RTM applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high
temperature tooling and molds.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-151-HT
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
346 (175)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
172 (78)
251 (122) 282 (139) 324 (162) 153 (67) 173 (78)
250 (121) 286 (141) 328 (164) 170 (77) 190 (88)
252 (122) 277 (136) 339 (171) 157 (69)
(2.65)5.01E+05
250 F (121 C)
x 8 hrs
140 F (60 C) x 2 hrs
+ 302 F (150 C)
x 4 hrs
281 (138) 303 (151) 357 (181) 193 (90) 195 (91)
18,800(130) 15,200
THERMAL PROPERTIES
Property Standard Units
200 F (93 C)
x 12 hrs
3.84E+05
4.28E+05(2.95)
5.5 3.9 3.8 4.2 5.6
(3.45)4.82E+05(3.32)
(105) 17,600(121) 18,100(125)
4.43E+05(3.05)4.10E+05(2.83)
21,400(148)
4.75E+05(3.28)4.56E+05(3.14)4.14E+05(2.85)4.68E+05(3.23)
(93) 13,500(93)
12,500(86) 10,800(74) 9,240(64) 9,690(67) 9,690(67)
89 90 87 86
Property Standard Units
200 F (93 C)
x 12 hrs
250 F (121 C)
x 8 hrs
140 F (60 C) x 2 hrs
+ 302 F (150 C)
x 4 hrs
87
16,600(114) 16,700(115) 16,300(112) 13,500
LAM-151-HT~LAM-251-HT
LAMINATING EPOXY
MECHANICAL PROPERTIES
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 263-323 192-236
500g Pot Life ASTM D2471minutes 211-259 138-170
Viscosity MixedASTM D2196 cP 1508 1046
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.75:1 3.30:1
Volume 3.00:1
Volume Range 3.14:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.45 (1.13)
Resin lb/gal (g/cc)9.69 (1.16)
Hardener lb/gal (g/cc)7.86 (0.94)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:26.6 100:30.3
100:31.9 100:36.3
100:33.3
100:28.6
Resin:Hardener
6300
121
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
358-438
276-338
1885
High temperature, high performance epoxy
formulation for synthetic composite mold and
tooling manufacture.
T
g as high as 350 F (176 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Medium viscosity for wet out of synthetic
composite fabrics; especially effective with
carbon fiber.
Extra slow cure speed hardener provides 8
to 10 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 14 to 20
hours at room temperature.
Optimized for hand wet out and machine
impregnation in contact molding, wet vacuum
bagging and Light RTM applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high
temperature tooling and molds.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-151-HT
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
346 (175)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
172 (78)
251 (122) 282 (139) 324 (162) 153 (67) 173 (78)
250 (121) 286 (141) 328 (164) 170 (77) 190 (88)
252 (122) 277 (136) 339 (171) 157 (69)
(2.65)5.01E+05
250 F (121 C)
x 8 hrs
140 F (60 C) x 2 hrs
+ 302 F (150 C)
x 4 hrs
281 (138) 303 (151) 357 (181) 193 (90) 195 (91)
18,800(130) 15,200
THERMAL PROPERTIES
Property Standard Units
200 F (93 C)
x 12 hrs
3.84E+05
4.28E+05(2.95)
5.5 3.9 3.8 4.2 5.6
(3.45)4.82E+05(3.32)
(105) 17,600(121) 18,100(125)
4.43E+05(3.05)4.10E+05(2.83)
21,400(148)
4.75E+05(3.28)4.56E+05(3.14)4.14E+05(2.85)4.68E+05(3.23)
(93) 13,500(93)
12,500(86) 10,800(74) 9,240(64) 9,690(67) 9,690(67)
89 90 87 86
Property Standard Units
200 F (93 C)
x 12 hrs
250 F (121 C)
x 8 hrs
140 F (60 C) x 2 hrs
+ 302 F (150 C)
x 4 hrs
87
16,600(114) 16,700(115) 16,300(112) 13,500
LAM-151-HT~LAM-251-HT
LAMINATING EPOXY
MECHANICAL PROPERTIES
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 2059 1565
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.31:1 4.05:1
Volume 3.00:1
Volume Range 2.85:1 3.48:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
2287
10,000
75
LAMINATING EPOXY
1.21
MIX RATIO
Resin:Hardener
100:28.7
100:33.3
100:30.2 100:24.7
100:35.1 100:28.7
DENSITY
VISCOSITY VS TEMPERATURE
Rev 3/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Fast cure speed hardener provides a 40 minute
working time at 77 F (25 C). A typical laminate
will be gelled in about 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3/ Dec 2015
2015 Gougeon Brothers, Inc.
LAM-145~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4) 4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123) 17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
5.24E+05(3.61)5.07E+05
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-46
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1455 1076
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.82:1 3.29:1
Volume 3.00:1
Volume Range 3.16:1 2.72:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Rev 3 / Dec 2015
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.7
100:33.3
100:26.2 100:30.4
100:27.6
Resin:Hardener
LAMINATING EPOXY
1.26
MIX RATIO
36-43
1868
10,000
42
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core
in place on vertical surfaces.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the produce code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
198(92)
208 (98)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
198(92)
129(54) 129(54) 154(68) 166(74)
(104)
134(57) 134(57) 156(69) 171(77)
160(71) 163(73) 188 (113)
144(62) 148(64) 169(76) 186(86)
(87) 206(97) 236
219
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
5.18E+05(3.57)4.69E+05
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
(3.23)
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
4.45E+05(3.07)
1.7 2.1 3.6 4.4 5.9
11,000(76)11,000(76)
4.91E+05(3.39)
(136) 20,000
8,600(59) 9,560(66)
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5)
11,000(76)
(103)
91 92
15,700(108) 16,100(111) 14,900(103) 14,900(103) 14,900
90 92 94
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
LAM-145~LAM-226
LAMINATING EPOXY
Units
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-98 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1420 1029
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.92:1 3.36:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.65 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 4/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.1 100:36.3
DENSITY
100:33.3
100:25.5 100:29.8
100:27.3
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.25
10,000
40
76-94
1807
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4/ Dec 2015
2015 Gougeon Brothers, Inc.
(73) 194(90)
201 (94)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
(73) 193(89)
127(53) 129(54) 150(66) 164
136(58) 132(56) 153(67) 164
143(62) 146(63) 168(76) 182
187(86)
(83)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159(71) 160(71)
212(100)
232(111)
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
202(94)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)5.23E+05
13,600(94) 13,300(92) 19,700
1.5 1.9 3.6 4.7 5.8
11,000(76)
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
11,000(76) 11,000(76)
20,400(141)
93
(3.53)
(136) 19,900(137)
7,500(52) 8,830(61)
4.59E+05(3.16)
(3.61)4.82E+05(3.32)
15,700(108) 15,900(110)
90 92
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
15,000(103) 15,000(103) 15,000(103)
92 93
LAM-145~LAM-229
LAMINATING EPOXY
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1448 1059
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.91:1 3.35:1
Volume 3.00:1
Volume Range 3.19:1 2.74:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.6 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 4 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.3 100:36.5
DENSITY
100:33.3
100:25.6 100:29.8
100:27.2
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.3
10,000
40
99-123
1753
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability and
great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C) (71)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C) (62)
Tg DSC Onset 1st Heat ASTM E1356 F ( C) (56)
Heat Deflection TemperatureASTM D648 F ( C) (51)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4 / Dec 2015
2015 Gougeon Brothers, Inc.
(72) 193 (89)
203 (95)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
164(73) 193 (89)
124 127(53) 151(66) 162
133 135(57) 157(69)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159 159(71) 187 (111)
144 145(63) 168(76) 180(82) 212 (100)
(86) 200(93) 232
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)5.28E+05
12,900(89) 12,900(89) 18,600
(3.64)4.87E+05(3.36)
4.73E+05(3.26)
1.7 1.9 2.6 4.6 5.7
11,200(77)
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
10,500(72) 11,000(76)
(3.57)
(128) 19,700(136)
8,340(58) 8,590(59)
15,300(105) 15,600(108)
90 91
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
14,800(102) 14,800(102) 14,800(102)
92 92 94
LAM-145~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 142-174
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1974 1291
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.10:1
Volume 3.00:1
Volume Range 3.57:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:28.0 100:38.7
DENSITY
100:33.3
100:27.8
100:23.4 100:32.3
LAMINATING EPOXY
1.1
MIX RATIO
Resin:Hardener
HANDLING PROPERTIES
10,000
116
Technical Data
72 F (22 C)
223-273
162-198
2599
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extended open time hardener provides 8 to 9
hours of working time at 85 F (29 C). A typical
laminate will be gelled in 12 to 14 hours at 85 F
(29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 215 F (102 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
224 (107)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during
storage may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for
extended periods of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
(102)
162(72) 174(79) 208(98)
167(75) 169(76) 215
(116)
181(83) 188(87) 215(102)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
210(99) 219(104) 241
THERMAL PROPERTIES
Property Standard Units
(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
4.05E+05(2.79)
10,200(70) 10,200(70)
4.8 6.2 6.3
17,700(122) 17,700(122) 17,700
86 91 86
14,100(97) 14,100(97) 14,100(97)
10,300(71)
4.83E+05(3.33)4.58E+05(3.16)
Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
LAM-145~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 147-181 90-110
500g Pot Life ASTM D2471minutes 111-137 69-85
Viscosity MixedASTM D2196 cP 3202 2249
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.50:1
Weight Range 3.83:1 3.35:1
Volume 3.00:1
Volume Range 3.29:1 2.88:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.58 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)9.58 (1.15)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:26.1 100:29.9
100:30.4 100:34.8
100:33.3
100:28.6
Resin:Hardener
10000
121
HIGH TEMPERATURE LAMINATING EPOXY
MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
214-262
142-174
4298
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Elevated temperature cure is required; thermal
and mechanical properties suitable for composite
components and high temperature tooling and
molds.
T
g as high as 280 F (138 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 18 months for
hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
8000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
268 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
170 (77) 265 (129)
192 (89) 280 (138)
171 (77) 268 (131)
250 F (121 C)
x 8 hrs
224 (107) 306 (152)
17,700(122)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
2.0 3.0
5.12E+5(3.53) 4.27E+5(2.94)
16,000(110)
5.27E+5(3.63) 4.37E+5(3.01)
9,030(62) 8,980(62)
88 90
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,900(117) 17,500(121)
LAM-145~LAM-251-HT
HIGH TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 2059 1565
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.31:1 4.05:1
Volume 3.00:1
Volume Range 2.85:1 3.48:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
2287
10,000
75
LAMINATING EPOXY
1.21
MIX RATIO
Resin:Hardener
100:28.7
100:33.3
100:30.2 100:24.7
100:35.1 100:28.7
DENSITY
VISCOSITY VS TEMPERATURE
Rev 3/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Fast cure speed hardener provides a 40 minute
working time at 77 F (25 C). A typical laminate
will be gelled in about 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3/ Dec 2015
2015 Gougeon Brothers, Inc.
LAM-145~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4) 4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123) 17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
5.24E+05(3.61)5.07E+05
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-46
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1455 1076
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.82:1 3.29:1
Volume 3.00:1
Volume Range 3.16:1 2.72:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Rev 3 / Dec 2015
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.7
100:33.3
100:26.2 100:30.4
100:27.6
Resin:Hardener
LAMINATING EPOXY
1.26
MIX RATIO
36-43
1868
10,000
42
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core
in place on vertical surfaces.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the produce code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
198(92)
208 (98)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
198(92)
129(54) 129(54) 154(68) 166(74)
(104)
134(57) 134(57) 156(69) 171(77)
160(71) 163(73) 188 (113)
144(62) 148(64) 169(76) 186(86)
(87) 206(97) 236
219
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
5.18E+05(3.57)4.69E+05
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
(3.23)
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
4.45E+05(3.07)
1.7 2.1 3.6 4.4 5.9
11,000(76)11,000(76)
4.91E+05(3.39)
(136) 20,000
8,600(59) 9,560(66)
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5)
11,000(76)
(103)
91 92
15,700(108) 16,100(111) 14,900(103) 14,900(103) 14,900
90 92 94
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
LAM-145~LAM-226
LAMINATING EPOXY
Units
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-98 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1420 1029
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.92:1 3.36:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.65 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 4/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.1 100:36.3
DENSITY
100:33.3
100:25.5 100:29.8
100:27.3
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.25
10,000
40
76-94
1807
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4/ Dec 2015
2015 Gougeon Brothers, Inc.
(73) 194(90)
201 (94)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
(73) 193(89)
127(53) 129(54) 150(66) 164
136(58) 132(56) 153(67) 164
143(62) 146(63) 168(76) 182
187(86)
(83)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159(71) 160(71)
212(100)
232(111)
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
202(94)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)5.23E+05
13,600(94) 13,300(92) 19,700
1.5 1.9 3.6 4.7 5.8
11,000(76)
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
11,000(76) 11,000(76)
20,400(141)
93
(3.53)
(136) 19,900(137)
7,500(52) 8,830(61)
4.59E+05(3.16)
(3.61)4.82E+05(3.32)
15,700(108) 15,900(110)
90 92
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
15,000(103) 15,000(103) 15,000(103)
92 93
LAM-145~LAM-229
LAMINATING EPOXY
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1448 1059
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.91:1 3.35:1
Volume 3.00:1
Volume Range 3.19:1 2.74:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.6 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 4 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.3 100:36.5
DENSITY
100:33.3
100:25.6 100:29.8
100:27.2
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.3
10,000
40
99-123
1753
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability and
great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C) (71)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C) (62)
Tg DSC Onset 1st Heat ASTM E1356 F ( C) (56)
Heat Deflection TemperatureASTM D648 F ( C) (51)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4 / Dec 2015
2015 Gougeon Brothers, Inc.
(72) 193 (89)
203 (95)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
164(73) 193 (89)
124 127(53) 151(66) 162
133 135(57) 157(69)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159 159(71) 187 (111)
144 145(63) 168(76) 180(82) 212 (100)
(86) 200(93) 232
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)5.28E+05
12,900(89) 12,900(89) 18,600
(3.64)4.87E+05(3.36)
4.73E+05(3.26)
1.7 1.9 2.6 4.6 5.7
11,200(77)
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
10,500(72) 11,000(76)
(3.57)
(128) 19,700(136)
8,340(58) 8,590(59)
15,300(105) 15,600(108)
90 91
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
14,800(102) 14,800(102) 14,800(102)
92 92 94
LAM-145~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 142-174
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1974 1291
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.10:1
Volume 3.00:1
Volume Range 3.57:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:28.0 100:38.7
DENSITY
100:33.3
100:27.8
100:23.4 100:32.3
LAMINATING EPOXY
1.1
MIX RATIO
Resin:Hardener
HANDLING PROPERTIES
10,000
116
Technical Data
72 F (22 C)
223-273
162-198
2599
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extended open time hardener provides 8 to 9
hours of working time at 85 F (29 C). A typical
laminate will be gelled in 12 to 14 hours at 85 F
(29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 215 F (102 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
224 (107)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during
storage may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for
extended periods of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
(102)
162(72) 174(79) 208(98)
167(75) 169(76) 215
(116)
181(83) 188(87) 215(102)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
210(99) 219(104) 241
THERMAL PROPERTIES
Property Standard Units
(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
4.05E+05(2.79)
10,200(70) 10,200(70)
4.8 6.2 6.3
17,700(122) 17,700(122) 17,700
86 91 86
14,100(97) 14,100(97) 14,100(97)
10,300(71)
4.83E+05(3.33)4.58E+05(3.16)
Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
LAM-145~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 147-181 90-110
500g Pot Life ASTM D2471minutes 111-137 69-85
Viscosity MixedASTM D2196 cP 3202 2249
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.50:1
Weight Range 3.83:1 3.35:1
Volume 3.00:1
Volume Range 3.29:1 2.88:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.58 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)9.58 (1.15)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:26.1 100:29.9
100:30.4 100:34.8
100:33.3
100:28.6
Resin:Hardener
10000
121
HIGH TEMPERATURE LAMINATING EPOXY
MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
214-262
142-174
4298
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Elevated temperature cure is required; thermal
and mechanical properties suitable for composite
components and high temperature tooling and
molds.
T
g as high as 280 F (138 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 18 months for
hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
8000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
268 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
170 (77) 265 (129)
192 (89) 280 (138)
171 (77) 268 (131)
250 F (121 C)
x 8 hrs
224 (107) 306 (152)
17,700(122)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
2.0 3.0
5.12E+5(3.53) 4.27E+5(2.94)
16,000(110)
5.27E+5(3.63) 4.37E+5(3.01)
9,030(62) 8,980(62)
88 90
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,900(117) 17,500(121)
LAM-145~LAM-251-HT
HIGH TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 2059 1565
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.31:1 4.05:1
Volume 3.00:1
Volume Range 2.85:1 3.48:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
2287
10,000
75
LAMINATING EPOXY
1.21
MIX RATIO
Resin:Hardener
100:28.7
100:33.3
100:30.2 100:24.7
100:35.1 100:28.7
DENSITY
VISCOSITY VS TEMPERATURE
Rev 3/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Fast cure speed hardener provides a 40 minute
working time at 77 F (25 C). A typical laminate
will be gelled in about 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3/ Dec 2015
2015 Gougeon Brothers, Inc.
LAM-145~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4) 4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123) 17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
5.24E+05(3.61)5.07E+05
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-46
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1455 1076
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.82:1 3.29:1
Volume 3.00:1
Volume Range 3.16:1 2.72:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Rev 3 / Dec 2015
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.7
100:33.3
100:26.2 100:30.4
100:27.6
Resin:Hardener
LAMINATING EPOXY
1.26
MIX RATIO
36-43
1868
10,000
42
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core
in place on vertical surfaces.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the produce code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
198(92)
208 (98)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
198(92)
129(54) 129(54) 154(68) 166(74)
(104)
134(57) 134(57) 156(69) 171(77)
160(71) 163(73) 188 (113)
144(62) 148(64) 169(76) 186(86)
(87) 206(97) 236
219
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
5.18E+05(3.57)4.69E+05
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
(3.23)
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
4.45E+05(3.07)
1.7 2.1 3.6 4.4 5.9
11,000(76)11,000(76)
4.91E+05(3.39)
(136) 20,000
8,600(59) 9,560(66)
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5)
11,000(76)
(103)
91 92
15,700(108) 16,100(111) 14,900(103) 14,900(103) 14,900
90 92 94
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
LAM-145~LAM-226
LAMINATING EPOXY
Units
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-98 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1420 1029
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.92:1 3.36:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.65 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 4/ Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.1 100:36.3
DENSITY
100:33.3
100:25.5 100:29.8
100:27.3
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.25
10,000
40
76-94
1807
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy
fabrics and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4/ Dec 2015
2015 Gougeon Brothers, Inc.
(73) 194(90)
201 (94)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
(73) 193(89)
127(53) 129(54) 150(66) 164
136(58) 132(56) 153(67) 164
143(62) 146(63) 168(76) 182
187(86)
(83)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159(71) 160(71)
212(100)
232(111)
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
202(94)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)5.23E+05
13,600(94) 13,300(92) 19,700
1.5 1.9 3.6 4.7 5.8
11,000(76)
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
11,000(76) 11,000(76)
20,400(141)
93
(3.53)
(136) 19,900(137)
7,500(52) 8,830(61)
4.59E+05(3.16)
(3.61)4.82E+05(3.32)
15,700(108) 15,900(110)
90 92
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
15,000(103) 15,000(103) 15,000(103)
92 93
LAM-145~LAM-229
LAMINATING EPOXY
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1448 1059
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 3.91:1 3.35:1
Volume 3.00:1
Volume Range 3.19:1 2.74:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.6 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 4 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:31.3 100:36.5
DENSITY
100:33.3
100:25.6 100:29.8
100:27.2
Resin:Hardener
MIX RATIO
LAMINATING EPOXY
1.3
10,000
40
99-123
1753
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability and
great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C) (71)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C) (62)
Tg DSC Onset 1st Heat ASTM E1356 F ( C) (56)
Heat Deflection TemperatureASTM D648 F ( C) (51)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 4 / Dec 2015
2015 Gougeon Brothers, Inc.
(72) 193 (89)
203 (95)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
164(73) 193 (89)
124 127(53) 151(66) 162
133 135(57) 157(69)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
159 159(71) 187 (111)
144 145(63) 168(76) 180(82) 212 (100)
(86) 200(93) 232
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)5.28E+05
12,900(89) 12,900(89) 18,600
(3.64)4.87E+05(3.36)
4.73E+05(3.26)
1.7 1.9 2.6 4.6 5.7
11,200(77)
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
10,500(72) 11,000(76)
(3.57)
(128) 19,700(136)
8,340(58) 8,590(59)
15,300(105) 15,600(108)
90 91
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
14,800(102) 14,800(102) 14,800(102)
92 92 94
LAM-145~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 142-174
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1974 1291
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
Shear Thinning IndexASTM D2196
COMBINED FEATURES
Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.10:1
Volume 3.00:1
Volume Range 3.57:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
100:28.0 100:38.7
DENSITY
100:33.3
100:27.8
100:23.4 100:32.3
LAMINATING EPOXY
1.1
MIX RATIO
Resin:Hardener
HANDLING PROPERTIES
10,000
116
Technical Data
72 F (22 C)
223-273
162-198
2599
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extended open time hardener provides 8 to 9
hours of working time at 85 F (29 C). A typical
laminate will be gelled in 12 to 14 hours at 85 F
(29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 215 F (102 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
4000
4500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
224 (107)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during
storage may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for
extended periods of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
(102)
162(72) 174(79) 208(98)
167(75) 169(76) 215
(116)
181(83) 188(87) 215(102)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
210(99) 219(104) 241
THERMAL PROPERTIES
Property Standard Units
(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
4.05E+05(2.79)
10,200(70) 10,200(70)
4.8 6.2 6.3
17,700(122) 17,700(122) 17,700
86 91 86
14,100(97) 14,100(97) 14,100(97)
10,300(71)
4.83E+05(3.33)4.58E+05(3.16)
Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
LAM-145~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 147-181 90-110
500g Pot Life ASTM D2471minutes 111-137 69-85
Viscosity MixedASTM D2196 cP 3202 2249
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.50:1
Weight Range 3.83:1 3.35:1
Volume 3.00:1
Volume Range 3.29:1 2.88:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.58 (1.15)
Resin lb/gal (g/cc)9.75 (1.17)
Hardener lb/gal (g/cc)9.58 (1.15)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:26.1 100:29.9
100:30.4 100:34.8
100:33.3
100:28.6
Resin:Hardener
10000
121
HIGH TEMPERATURE LAMINATING EPOXY
MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
214-262
142-174
4298
Medium viscosity for good wet out of all synthetic
composite fabrics and core materials.
Thixotroped to prevent drain out in heavy fabrics
and on vertical surfaces.
High tack to help hold heavy fabric and core in
place on vertical surfaces.
Extra slow cure speed hardener provides 7 to 8
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 12 to 14 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum bagging
and filament winding applications.
Elevated temperature cure is required; thermal
and mechanical properties suitable for composite
components and high temperature tooling and
molds.
T
g as high as 280 F (138 C) with proper post cure
providing excellent temperature stability and great
part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code on
your order.
Shelf life is 3 years for resin and 18 months for
hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
8000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-145
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
268 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
170 (77) 265 (129)
192 (89) 280 (138)
171 (77) 268 (131)
250 F (121 C)
x 8 hrs
224 (107) 306 (152)
17,700(122)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
2.0 3.0
5.12E+5(3.53) 4.27E+5(2.94)
16,000(110)
5.27E+5(3.63) 4.37E+5(3.01)
9,030(62) 8,980(62)
88 90
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,900(117) 17,500(121)
LAM-145~LAM-251-HT
HIGH TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 1360 970
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.25:1 3.97:1
Volume 3.00:1
Volume Range 2.80:1 3.43:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:30.8 100:25.2
100:35.7 100:29.2
100:33.3
100:28.8
Resin:Hardener
6890
75
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
1705
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Fast cure speed hardener provides a 40
minutes working time at 77 F (25 C). A typical
laminate will be gelled in 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As
with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation
when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
(3.61)5.07E+05
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
5.24E+05
4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4)
(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000
LAM-135~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-45
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1124 765
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.87:1 3.32:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.71 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.1 100:36.3
100:33.3
100:27.7
Resin:Hardener
100:25.8 100:30.1
LAMINATING EPOXY MIX RATIO
6890
42
35-43
1367
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
166(74) 198(92)
208 (98)
198(92)
129(54) 129(54) 154(68)
134(57) 134(57) 156(69)
144(62) 148(64) 169(76) 186(86)
206(97)
171(77)
160(71) 163(73) 188(87) 236(113)
219(104)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.18E+05(3.57)4.69E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5) 4.91E+05
(76) 11,000(76) 11,000
(3.39)
(3.23)
4.45E+05
(136) 20,000
14,900(103)
8,600(59) 9,560(66) 11,000
(3.07)
1.7 2.1 3.6 4.4 5.9
(76)
90 92 94
14,900(103) 14,900(103)
91 92
15,700(108) 16,100(111)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-226
LAMINATING EPOXY
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-97 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1098 747
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.30:1
Volume 3.00:1
Volume Range 3.16:1 2.71:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 5 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.9
100:33.3
100:27.4
Resin:Hardener
100:26.0 100:30.3
LAMINATING EPOXY MIX RATIO
6890
40
76-93
1241
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 5 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may
cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners
may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time.
Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
164(73) 194(90)
201 (94)
193(89)
127(53) 129(54) 150(66)
136(58) 132(56) 153(67)
143(62) 146(63) 168(76) 182(83)
202(94)
164(73)
159(71) 160(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.23E+05(3.61)4.82E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(137) 20,400(141)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)
13,600(94) 13,300(92) 19,700
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
(76) 11,000(76) 11,000
(3.53)
(3.32)
4.59E+05
(136) 19,900
15,000(103)
7,500(52) 8,830(61) 11,000
(3.16)
1.5 1.9 3.6 4.7 5.8
(76)
92 93 93
15,000(103) 15,000(103)
90 92
15,700(108) 15,900(110)
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-229
LAMINATING EPOXY
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1048 759
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.29:1
Volume 3.00:1
Volume Range 3.14:1 2.69:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.62 (1.15)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.8 100:37.1
100:33.3
100:27.3
Resin:Hardener
100:26.1 100:30.4
LAMINATING EPOXY MIX RATIO
6890
40
99-123
1299
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
162(72) 193(89)
196 (91)
193(89)
124(51) 127(53) 151(66)
133(56) 135(57) 157(69)
144(62) 145(63) 168(76) 180(82)
200(93)
164(73)
159(71) 159(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.28E+05(3.64)4.87E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(136) 19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)
12,900(89) 12,900(89) 18,600
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
(72) 11,000(76) 11,200
(3.57)
(3.36)
4.73E+05
(128) 19,700
14,800(102)
8,340(58) 8,590(59) 10,500
(3.26)
1.7 1.9 2.6 4.6 5.7
(77)
92 92 94
14,800(102) 14,800(102)
90 91
15,300(105) 15,600(108)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
LAM-135~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-228 142-194
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1544 1085
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.08:1
Volume 3.00:1
Volume Range 3.59:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:27.9 100:38.8
100:27.9
Resin:Hardener
100:23.4 100:32.5
100:33.3
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
6,890
116
Technical Data
72 F (22 C)
223-272
162-198
1976
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extended open time hardener provides 8 to
9 hours of working time at 85 F (29 C). A
typical laminate will be gelled in 12 to 14
hours at 85 F (29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 215 F (102 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
221 (105)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
169(76) 215(102)
162(72) 174(79) 208(98)
181(83) 188(87) 215(102)
167(75)
210(99) 219(104) 241(116)
10,300(71)
THERMAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
17,700(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
4.83E+05(3.33)4.58E+05(3.16)4.05E+05
10,200(70) 10,200(70)
(2.79)
4.8 6.2 6.3
17,700(122) 17,700(122)
86 91 86
14,100(97) 14,100(97) 14,100(97)
Units
LAM-135~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 129-159
500g Pot Life ASTM D2471minutes 128-158 89-109
Viscosity MixedASTM D2196 cP 2231 1523
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.7:1
Weight Range 3.35:1 4.02:1
Volume 3.00:1
Volume Range 2.71:1 3.25:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.53 (1.14)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)9.53 (1.14)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
225-277
150-184
2955
6890
121
HIGH-TEMPERATURE LAMINATING EPOXY
MIX RATIO
Resin:Hardener
100:27.0
100:29.9 100:24.9
100:36.9 100:30.8
100:33.3
DENSITY
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra Slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 286 F (141 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
LAM-135~LAM-251-HT
HIGH-TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
88 89
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,000(110) 17,000(117)
9,240(64) 10,800(74)
5.09E+5(3.51) 4.06E+5(2.8)
2.1 5.0
5.11E+5(3.52) 4.07E+5(2.81)
15,400(106) 18,700(129)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
225 (107) 311 (155)
269 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
171 (77) 267 (131)
189 (87) 286 (141)
173 (78) 253 (123)
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 1360 970
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.25:1 3.97:1
Volume 3.00:1
Volume Range 2.80:1 3.43:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:30.8 100:25.2
100:35.7 100:29.2
100:33.3
100:28.8
Resin:Hardener
6890
75
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
1705
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Fast cure speed hardener provides a 40
minutes working time at 77 F (25 C). A typical
laminate will be gelled in 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As
with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation
when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
(3.61)5.07E+05
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
5.24E+05
4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4)
(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000
LAM-135~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-45
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1124 765
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.87:1 3.32:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.71 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.1 100:36.3
100:33.3
100:27.7
Resin:Hardener
100:25.8 100:30.1
LAMINATING EPOXY MIX RATIO
6890
42
35-43
1367
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
166(74) 198(92)
208 (98)
198(92)
129(54) 129(54) 154(68)
134(57) 134(57) 156(69)
144(62) 148(64) 169(76) 186(86)
206(97)
171(77)
160(71) 163(73) 188(87) 236(113)
219(104)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.18E+05(3.57)4.69E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5) 4.91E+05
(76) 11,000(76) 11,000
(3.39)
(3.23)
4.45E+05
(136) 20,000
14,900(103)
8,600(59) 9,560(66) 11,000
(3.07)
1.7 2.1 3.6 4.4 5.9
(76)
90 92 94
14,900(103) 14,900(103)
91 92
15,700(108) 16,100(111)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-226
LAMINATING EPOXY
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-97 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1098 747
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.30:1
Volume 3.00:1
Volume Range 3.16:1 2.71:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 5 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.9
100:33.3
100:27.4
Resin:Hardener
100:26.0 100:30.3
LAMINATING EPOXY MIX RATIO
6890
40
76-93
1241
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 5 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may
cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners
may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time.
Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
164(73) 194(90)
201 (94)
193(89)
127(53) 129(54) 150(66)
136(58) 132(56) 153(67)
143(62) 146(63) 168(76) 182(83)
202(94)
164(73)
159(71) 160(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.23E+05(3.61)4.82E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(137) 20,400(141)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)
13,600(94) 13,300(92) 19,700
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
(76) 11,000(76) 11,000
(3.53)
(3.32)
4.59E+05
(136) 19,900
15,000(103)
7,500(52) 8,830(61) 11,000
(3.16)
1.5 1.9 3.6 4.7 5.8
(76)
92 93 93
15,000(103) 15,000(103)
90 92
15,700(108) 15,900(110)
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-229
LAMINATING EPOXY
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1048 759
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.29:1
Volume 3.00:1
Volume Range 3.14:1 2.69:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.62 (1.15)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.8 100:37.1
100:33.3
100:27.3
Resin:Hardener
100:26.1 100:30.4
LAMINATING EPOXY MIX RATIO
6890
40
99-123
1299
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
162(72) 193(89)
196 (91)
193(89)
124(51) 127(53) 151(66)
133(56) 135(57) 157(69)
144(62) 145(63) 168(76) 180(82)
200(93)
164(73)
159(71) 159(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.28E+05(3.64)4.87E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(136) 19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)
12,900(89) 12,900(89) 18,600
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
(72) 11,000(76) 11,200
(3.57)
(3.36)
4.73E+05
(128) 19,700
14,800(102)
8,340(58) 8,590(59) 10,500
(3.26)
1.7 1.9 2.6 4.6 5.7
(77)
92 92 94
14,800(102) 14,800(102)
90 91
15,300(105) 15,600(108)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
LAM-135~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-228 142-194
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1544 1085
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.08:1
Volume 3.00:1
Volume Range 3.59:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:27.9 100:38.8
100:27.9
Resin:Hardener
100:23.4 100:32.5
100:33.3
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
6,890
116
Technical Data
72 F (22 C)
223-272
162-198
1976
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extended open time hardener provides 8 to
9 hours of working time at 85 F (29 C). A
typical laminate will be gelled in 12 to 14
hours at 85 F (29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 215 F (102 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
221 (105)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
169(76) 215(102)
162(72) 174(79) 208(98)
181(83) 188(87) 215(102)
167(75)
210(99) 219(104) 241(116)
10,300(71)
THERMAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
17,700(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
4.83E+05(3.33)4.58E+05(3.16)4.05E+05
10,200(70) 10,200(70)
(2.79)
4.8 6.2 6.3
17,700(122) 17,700(122)
86 91 86
14,100(97) 14,100(97) 14,100(97)
Units
LAM-135~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 129-159
500g Pot Life ASTM D2471minutes 128-158 89-109
Viscosity MixedASTM D2196 cP 2231 1523
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.7:1
Weight Range 3.35:1 4.02:1
Volume 3.00:1
Volume Range 2.71:1 3.25:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.53 (1.14)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)9.53 (1.14)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
225-277
150-184
2955
6890
121
HIGH-TEMPERATURE LAMINATING EPOXY
MIX RATIO
Resin:Hardener
100:27.0
100:29.9 100:24.9
100:36.9 100:30.8
100:33.3
DENSITY
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra Slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 286 F (141 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
LAM-135~LAM-251-HT
HIGH-TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
88 89
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,000(110) 17,000(117)
9,240(64) 10,800(74)
5.09E+5(3.51) 4.06E+5(2.8)
2.1 5.0
5.11E+5(3.52) 4.07E+5(2.81)
15,400(106) 18,700(129)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
225 (107) 311 (155)
269 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
171 (77) 267 (131)
189 (87) 286 (141)
173 (78) 253 (123)
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 1360 970
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.25:1 3.97:1
Volume 3.00:1
Volume Range 2.80:1 3.43:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:30.8 100:25.2
100:35.7 100:29.2
100:33.3
100:28.8
Resin:Hardener
6890
75
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
1705
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Fast cure speed hardener provides a 40
minutes working time at 77 F (25 C). A typical
laminate will be gelled in 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As
with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation
when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
(3.61)5.07E+05
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
5.24E+05
4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4)
(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000
LAM-135~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-45
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1124 765
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.87:1 3.32:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.71 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.1 100:36.3
100:33.3
100:27.7
Resin:Hardener
100:25.8 100:30.1
LAMINATING EPOXY MIX RATIO
6890
42
35-43
1367
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
166(74) 198(92)
208 (98)
198(92)
129(54) 129(54) 154(68)
134(57) 134(57) 156(69)
144(62) 148(64) 169(76) 186(86)
206(97)
171(77)
160(71) 163(73) 188(87) 236(113)
219(104)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.18E+05(3.57)4.69E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5) 4.91E+05
(76) 11,000(76) 11,000
(3.39)
(3.23)
4.45E+05
(136) 20,000
14,900(103)
8,600(59) 9,560(66) 11,000
(3.07)
1.7 2.1 3.6 4.4 5.9
(76)
90 92 94
14,900(103) 14,900(103)
91 92
15,700(108) 16,100(111)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-226
LAMINATING EPOXY
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-97 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1098 747
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.30:1
Volume 3.00:1
Volume Range 3.16:1 2.71:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 5 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.9
100:33.3
100:27.4
Resin:Hardener
100:26.0 100:30.3
LAMINATING EPOXY MIX RATIO
6890
40
76-93
1241
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 5 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may
cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners
may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time.
Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
164(73) 194(90)
201 (94)
193(89)
127(53) 129(54) 150(66)
136(58) 132(56) 153(67)
143(62) 146(63) 168(76) 182(83)
202(94)
164(73)
159(71) 160(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.23E+05(3.61)4.82E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(137) 20,400(141)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)
13,600(94) 13,300(92) 19,700
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
(76) 11,000(76) 11,000
(3.53)
(3.32)
4.59E+05
(136) 19,900
15,000(103)
7,500(52) 8,830(61) 11,000
(3.16)
1.5 1.9 3.6 4.7 5.8
(76)
92 93 93
15,000(103) 15,000(103)
90 92
15,700(108) 15,900(110)
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-229
LAMINATING EPOXY
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1048 759
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.29:1
Volume 3.00:1
Volume Range 3.14:1 2.69:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.62 (1.15)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.8 100:37.1
100:33.3
100:27.3
Resin:Hardener
100:26.1 100:30.4
LAMINATING EPOXY MIX RATIO
6890
40
99-123
1299
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
162(72) 193(89)
196 (91)
193(89)
124(51) 127(53) 151(66)
133(56) 135(57) 157(69)
144(62) 145(63) 168(76) 180(82)
200(93)
164(73)
159(71) 159(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.28E+05(3.64)4.87E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(136) 19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)
12,900(89) 12,900(89) 18,600
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
(72) 11,000(76) 11,200
(3.57)
(3.36)
4.73E+05
(128) 19,700
14,800(102)
8,340(58) 8,590(59) 10,500
(3.26)
1.7 1.9 2.6 4.6 5.7
(77)
92 92 94
14,800(102) 14,800(102)
90 91
15,300(105) 15,600(108)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
LAM-135~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-228 142-194
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1544 1085
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.08:1
Volume 3.00:1
Volume Range 3.59:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:27.9 100:38.8
100:27.9
Resin:Hardener
100:23.4 100:32.5
100:33.3
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
6,890
116
Technical Data
72 F (22 C)
223-272
162-198
1976
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extended open time hardener provides 8 to
9 hours of working time at 85 F (29 C). A
typical laminate will be gelled in 12 to 14
hours at 85 F (29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 215 F (102 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
221 (105)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
169(76) 215(102)
162(72) 174(79) 208(98)
181(83) 188(87) 215(102)
167(75)
210(99) 219(104) 241(116)
10,300(71)
THERMAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
17,700(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
4.83E+05(3.33)4.58E+05(3.16)4.05E+05
10,200(70) 10,200(70)
(2.79)
4.8 6.2 6.3
17,700(122) 17,700(122)
86 91 86
14,100(97) 14,100(97) 14,100(97)
Units
LAM-135~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 129-159
500g Pot Life ASTM D2471minutes 128-158 89-109
Viscosity MixedASTM D2196 cP 2231 1523
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.7:1
Weight Range 3.35:1 4.02:1
Volume 3.00:1
Volume Range 2.71:1 3.25:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.53 (1.14)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)9.53 (1.14)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
225-277
150-184
2955
6890
121
HIGH-TEMPERATURE LAMINATING EPOXY
MIX RATIO
Resin:Hardener
100:27.0
100:29.9 100:24.9
100:36.9 100:30.8
100:33.3
DENSITY
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra Slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 286 F (141 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
LAM-135~LAM-251-HT
HIGH-TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
88 89
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,000(110) 17,000(117)
9,240(64) 10,800(74)
5.09E+5(3.51) 4.06E+5(2.8)
2.1 5.0
5.11E+5(3.52) 4.07E+5(2.81)
15,400(106) 18,700(129)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
225 (107) 311 (155)
269 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
171 (77) 267 (131)
189 (87) 286 (141)
173 (78) 253 (123)
by | Sep 27, 2025
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 11-15 9-11
500g Pot Life ASTM D2471minutes 11-15 9-11
Viscosity MixedASTM D2196 cP 1360 970
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.25:1 3.97:1
Volume 3.00:1
Volume Range 2.80:1 3.43:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.76 (1.17)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.38 (1.00)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:30.8 100:25.2
100:35.7 100:29.2
100:33.3
100:28.8
Resin:Hardener
6890
75
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
Technical Data
72 F (22 C)
13-17
13-17
1705
Medium viscosity for good wet out of all
synthetic composite fabrics and core materials.
Fast cure speed hardener provides a 40
minutes working time at 77 F (25 C). A typical
laminate will be gelled in 1.5 to 2 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable for
many composite components and structures.
T
g as high as 223 F (106 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product code
on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-224
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
213 (101)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As
with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation
when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
211 (99)
138 (59) 137 (58) 154 (68) 169 (76) 186 (86)
151 (66) 151 (66) 166 (75) 181 (83) 223 (106)
137 (58) 135 (57) 165 (74) 182 (84)
(3.61)5.07E+05
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
180 (82) 177 (80) 208 (98) 216 (102) 242 (117)
17,000(117) 18,400
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 4 wk
5.24E+05
4.75E+05(3.28)
3.1 4.9 4.4 4.4 6.7
(3.5) 4.88E+05(3.36)
(127) 18,600(128) 20,300(140)
5.45E+05(3.76)4.72E+05(3.25)
17,800(123)
5.61E+05(3.87)5.49E+05(3.79)5.44E+05(3.75)4.93E+05(3.4)
(103) 15,000(103)
10,800(74) 11,100(77) 11,000(76) 11,000(76) 11,500(79)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
86 88 83 85
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
87
15,100(104) 14,200(98) 15,000(103) 15,000
LAM-135~LAM-224
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 44-54 36-45
500g Pot Life ASTM D2471minutes 38-48 33-41
Viscosity MixedASTM D2196 cP 1124 765
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.87:1 3.32:1
Volume 3.00:1
Volume Range 3.21:1 2.75:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.71 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.06 (0.97)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.1 100:36.3
100:33.3
100:27.7
Resin:Hardener
100:25.8 100:30.1
LAMINATING EPOXY MIX RATIO
6890
42
35-43
1367
HANDLING PROPERTIES
Technical Data
72 F (22 C)
52-64
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Medium cure speed hardener provides 2 to 3
hours of working time at 77 F (25 C). A typical
laminate will be gelled in 4 to 5 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Excellent for taping and tabbing operations in
composite structure assembly.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 219 F (104 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-226
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
166(74) 198(92)
208 (98)
198(92)
129(54) 129(54) 154(68)
134(57) 134(57) 156(69)
144(62) 148(64) 169(76) 186(86)
206(97)
171(77)
160(71) 163(73) 188(87) 236(113)
219(104)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.18E+05(3.57)4.69E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(138) 20,300(140)
5.75E+05(3.96)5.70E+05(3.93)5.48E+05(3.78)
14,600(101) 15,100(104) 19,700
5.82E+05(4.01)5.35E+05(3.69)5.07E+05(3.5) 4.91E+05
(76) 11,000(76) 11,000
(3.39)
(3.23)
4.45E+05
(136) 20,000
14,900(103)
8,600(59) 9,560(66) 11,000
(3.07)
1.7 2.1 3.6 4.4 5.9
(76)
90 92 94
14,900(103) 14,900(103)
91 92
15,700(108) 16,100(111)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-226
LAMINATING EPOXY
72 F (22 C)
x 4 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 80-97 62-76
500g Pot Life ASTM D2471minutes 68-84 50-62
Viscosity MixedASTM D2196 cP 1098 747
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.30:1
Volume 3.00:1
Volume Range 3.16:1 2.71:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.67 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.99 (0.96)
2015 Gougeon Brothers, Inc.
Rev 5 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.6 100:36.9
100:33.3
100:27.4
Resin:Hardener
100:26.0 100:30.3
LAMINATING EPOXY MIX RATIO
6890
40
76-93
1241
HANDLING PROPERTIES
Technical Data
72 F (22 C)
90-112
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Slow cure speed hardener provides 4 to 5
hours working time at 77 F (25 C). A typical
laminate will be gelled in 6 to 7 hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-229
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 5 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may
cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners
may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time.
Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
164(73) 194(90)
201 (94)
193(89)
127(53) 129(54) 150(66)
136(58) 132(56) 153(67)
143(62) 146(63) 168(76) 182(83)
202(94)
164(73)
159(71) 160(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.23E+05(3.61)4.82E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(137) 20,400(141)
5.89E+05(4.06)5.65E+05(3.9) 5.35E+05(3.69)
13,600(94) 13,300(92) 19,700
5.75E+05(3.96)5.73E+05(3.95)5.29E+05(3.65)5.12E+05
(76) 11,000(76) 11,000
(3.53)
(3.32)
4.59E+05
(136) 19,900
15,000(103)
7,500(52) 8,830(61) 11,000
(3.16)
1.5 1.9 3.6 4.7 5.8
(76)
92 93 93
15,000(103) 15,000(103)
90 92
15,700(108) 15,900(110)
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard Units
LAM-135~LAM-229
LAMINATING EPOXY
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 114-140 72-88
500g Pot Life ASTM D2471minutes 81-101 57-71
Viscosity MixedASTM D2196 cP 1048 759
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 3.84:1 3.29:1
Volume 3.00:1
Volume Range 3.14:1 2.69:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.62 (1.15)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)7.95 (0.95)
2015 Gougeon Brothers, Inc.
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:31.8 100:37.1
100:33.3
100:27.3
Resin:Hardener
100:26.1 100:30.4
LAMINATING EPOXY MIX RATIO
6890
40
99-123
1299
HANDLING PROPERTIES
Technical Data
72 F (22 C)
136-168
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Room temperature cure properties suitable
for many composite components and
structures.
T
g as high as 212 F (100 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
hardener when properly stored
3
.
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-237
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause the resin
to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent carbamation by protecting
hardeners from exposure until immediately prior to processing.
162(72) 193(89)
196 (91)
193(89)
124(51) 127(53) 151(66)
133(56) 135(57) 157(69)
144(62) 145(63) 168(76) 180(82)
200(93)
164(73)
159(71) 159(71) 187(86) 232(111)
212(100)
Property Standard Units
72 F (22 C)
x 4 wk
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
5.28E+05(3.64)4.87E+05
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
THERMAL PROPERTIES
(136) 19,700(136)
5.55E+05(3.83)5.46E+05(3.76)5.41E+05(3.73)
12,900(89) 12,900(89) 18,600
5.47E+05(3.77)5.20E+05(3.59)5.32E+05(3.67)5.18E+05
(72) 11,000(76) 11,200
(3.57)
(3.36)
4.73E+05
(128) 19,700
14,800(102)
8,340(58) 8,590(59) 10,500
(3.26)
1.7 1.9 2.6 4.6 5.7
(77)
92 92 94
14,800(102) 14,800(102)
90 91
15,300(105) 15,600(108)
77 F (25 C)
x 2 wk
RT Gelation
+ 120 F (49 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
Property Standard Units
72 F (22 C)
x 4 wk
LAM-135~LAM-237
LAMINATING EPOXY
MECHANICAL PROPERTIES
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-228 142-194
500g Pot Life ASTM D2471minutes 123-151 94-116
Viscosity MixedASTM D2196 cP 1544 1085
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.5:1
Weight Range 4.28:1 3.08:1
Volume 3.00:1
Volume Range 3.59:1 2.58:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.68 (1.16)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)8.14 (0.98)
2015 Gougeon Brothers, Inc.
Rev 2 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
DENSITY
100:27.9 100:38.8
100:27.9
Resin:Hardener
100:23.4 100:32.5
100:33.3
LAMINATING EPOXY MIX RATIO
HANDLING PROPERTIES
6,890
116
Technical Data
72 F (22 C)
223-272
162-198
1976
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extended open time hardener provides 8 to
9 hours of working time at 85 F (29 C). A
typical laminate will be gelled in 12 to 14
hours at 85 F (29 C).
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 215 F (102 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 2 years for
0
500
1000
1500
2000
2500
3000
3500
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-239
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 2 / Dec 2015
2015 Gougeon Brothers, Inc.
221 (105)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before
use. As with many high-performance epoxy resins, repeated exposure to low temperatures during storage
may cause the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals.
Hardeners may form carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods
of time. Prevent carbamation by protecting hardeners from exposure until immediately prior to processing.
169(76) 215(102)
162(72) 174(79) 208(98)
181(83) 188(87) 215(102)
167(75)
210(99) 219(104) 241(116)
10,300(71)
THERMAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
17,700(122)
4.84E+05(3.34)4.84E+05(3.34)4.21E+05(2.9)
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
4.83E+05(3.33)4.58E+05(3.16)4.05E+05
10,200(70) 10,200(70)
(2.79)
4.8 6.2 6.3
17,700(122) 17,700(122)
86 91 86
14,100(97) 14,100(97) 14,100(97)
Units
LAM-135~LAM-239
LAMINATING EPOXY
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 140 F (60 C)
x 16 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
MECHANICAL PROPERTIES
Property Standard
Property Standard Units 77 F (25 C)85 F (29 C)
150g Pot Life ASTM D2471minutes 187-229 129-159
500g Pot Life ASTM D2471minutes 128-158 89-109
Viscosity MixedASTM D2196 cP 2231 1523
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.7:1
Weight Range 3.35:1 4.02:1
Volume 3.00:1
Volume Range 2.71:1 3.25:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.53 (1.14)
Resin lb/gal (g/cc)9.71 (1.16)
Hardener lb/gal (g/cc)9.53 (1.14)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
225-277
150-184
2955
6890
121
HIGH-TEMPERATURE LAMINATING EPOXY
MIX RATIO
Resin:Hardener
100:27.0
100:29.9 100:24.9
100:36.9 100:30.8
100:33.3
DENSITY
Rev 3 / Dec 2015
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
VISCOSITY VS TEMPERATURE
Medium viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Extra Slow cure speed hardener provides 7
to 8 hours of working time at 77 F (25 C). A
typical laminate will be gelled in 12 to 14
hours.
Optimized for hand wet out and machine
impregnation in contact molding, vacuum
bagging and filament winding applications.
Elevated temperature cure is required;
thermal and mechanical properties suitable
for composite components and high-
temperature tooling and molds.
T
g as high as 286 F (141 C) with proper post
cure providing excellent temperature stability
and great part cosmetics.
Cost effective, high performance epoxy
formulation for synthetic composite
manufacturing.
Quality-control tinting is available at no extra
charge; simply add “QC” after the product
code on your order.
Shelf life is 3 years for resin and 18 months
for hardener when properly stored
3
.
0
1000
2000
3000
4000
5000
6000
7000
50 60 70 80 90 100 110 120 130
Viscosity (cP)
Temperature ( F)
LAM-135
LAM-251-HT
Hardness ASTM D2240Type D
Compression Yield ASTM D695psi (MPa)
Tensile Strength ASTM D638psi (MPa)
Tensile Modulus ASTM D638psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790psi (MPa)
Flexural Modulus ASTM D790psi (GPa)
Tg DMA Peak Tan Delta ASTM E1640
1
F ( C)
Tg DMA Onset Storage ModulusASTM E1640
1
F ( C)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 3 / Dec 2015
2015 Gougeon Brothers, Inc.
LAM-135~LAM-251-HT
HIGH-TEMPERATURE LAMINATING EPOXY
MECHANICAL PROPERTIES
88 89
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
16,000(110) 17,000(117)
9,240(64) 10,800(74)
5.09E+5(3.51) 4.06E+5(2.8)
2.1 5.0
5.11E+5(3.52) 4.07E+5(2.81)
15,400(106) 18,700(129)
THERMAL PROPERTIES
Property Standard Units
140 F (60 C)
x 8 hrs
250 F (121 C)
x 8 hrs
225 (107) 311 (155)
269 (131)
1
1 Hz, 3 C per minute.
2
Additional post cure may be required; contact Technical Department for details.
3
Store PRO-SET Epoxy resins and hardeners at room temperature in sealed containers until shortly before use.
As with many high-performance epoxy resins, repeated exposure to low temperatures during storage may cause
the resin to crystallize. If this occurs, warm the resin to 125 F and stir to dissolve crystals. Hardeners may form
carbamation when exposed to CO
2 and moisture in the atmosphere for extended periods of time. Prevent
carbamation by protecting hardeners from exposure until immediately prior to processing.
171 (77) 267 (131)
189 (87) 286 (141)
173 (78) 253 (123)
by | Sep 27, 2025
