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)