by | Sep 27, 2025
Property Standard Units
100g Pot Life – minutes
Viscosity Mixed ASTM D2196 cP
Method Resin:Hardener
COMBINED FEATURES Weight 3.70:1
Volume 3.13:1
2024 Gougeon Brothers, Inc.
Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Rev 7 / Mar 2024
100:32.0
100:27.0
FIRE RETARDANT LAMINATING
EPOXY
MIX RATIO
Resin:Hardener
HANDLING PROPERTIES
Technical Data
72 F (22 C)
135-165
720
Low viscosity for quick wet out of synthetic
composite fabrics; especially effective with Kevlar
and carbon fiber.
Medium speed hardenerprovides up to 150 minutes
of pot life at 72 F (22 C).
Fire retardant system contains high levels of
phosphorous to reduce flame spread and smoke
generation in a composite laminate when compared
to a standard resin system.
Optimizedfor 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
gas high as 138 F (59 C) with proper post cure
providing excellent temperature stability and great part
cosmetics.
XR29A~M2044
Caution-Stir Resin thoroughly with mechanical mixer
before blending with Hardener. Contents may settle
during storage.
Hardness ASTM D2240 Type D
Compression Yield ASTM D695 psi (MPa)
Tensile Strength ASTM D638 psi (MPa)
Tensile Modulus ASTM D638 psi (GPa)
Tensile Elongation ASTM D638 %
Flexural Strength ASTM D790 psi (MPa)
Flexural Modulus ASTM D790 psi (GPa)
Tg DSC Onset 1st Heat ASTM E1356 F ( C)
Heat Deflection Temperature ASTM D648 F ( C)
Tg DSC Ultimate ASTM E1356 F ( C)
Rev 7 / Mar 2024
2024 Gougeon Brothers, Inc.
1
Additional post cure may be required; contact Technical Department for details.
2
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.
116 (47) 118 (48)
138 (59)
121 (49) 119 (48)
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 2 wk
RT Gelation
+ 140 F (60 C)
x 8 hrs
3.62E+05(2.5) 3.91E+05(2.7)
11,800(81) 12,900(89)
2.7 3.0
4.06E+05(2.8) 4.14E+05(2.85)
6,680(46) 7,390(51)
(81) 12,300(85)
83 84
11,800
Standard Units
72 F (22 C)
x 2 wk
RT Gelation
+ 140 F (60 C)
x 8 hrs
XR29A~M2044
FIRE RETARDANT LAMINATING EPOXY
MECHANICAL PROPERTIES
Property
S helf Li fe
Ye a r
3
Re s in
Ye a r
2
Har dene r
QC Tinting Availa
by | Sep 27, 2025
Method State
Weight Resin
Volume Hardener
Hardness
Compression Yield 10,430
Tensile Strength 8,040
Tensile Modulus 4.14E+05
Tensile Elongation
Flexural Strength 14,000
Flexural Modulus 4.27E+05
Tg DSC Onset 1st Heat 127(53)
124(51)
149(65)
2024 Gougeon Brothers, Inc.
Rev 6 / Mar 2024
Ultimate Tg by DSC ASTM E1356 F ( C)
1
Additional post cure may be required; contact Technical Department for details.
2
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.
Test specimens were neat
epoxy (without fiber
reinforcement).
Typical values, not to be
construed as specification.
ASTM E1356 F ( C)
Heat Deflection TemperatureASTM D648 F ( C)
ASTM D790 psi (MPa) (2944)
THERMAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
ASTM D638 % 3.9
ASTM D790 psi (MPa) (97)
ASTM D638 psi (MPa) (55)
ASTM D638 psi (MPa) (2854)
ASTM D2240 Type D 84
ASTM D695 psi (MPa) (72)
3.23:1 100:31.0 lb/gal (g/cc)8.10 (0.97)
MECHANICAL PROPERTIES
Property Standard Units
RT Gelation
+ 140 F (60 C)
x 8 hrs
DENSITY
Resin:HardenerResin:Hardener Units 72 F (22 C)
3.85:1 100:26.0 lb/gal (g/cc)9.51 (1.14)
Viscosity (resin) ASTM D2196 cP 480
Viscosity (hardener)ASTM D2196 cP 115
MIX RATIO
100g Pot Life ASTM D2471minutes 225-275
Viscosity Mixed ASTM D2196 cP 325
HANDLING PROPERTIES
Technical Data
Property Standard Units 72 F (22 C)
XR28A~M2046
FIRE RETARDANT
INFUSION EPOXY
COMBINED FEATURES
Very low v iscosity for rapi d saturation of
fiberglass, K evlar and carbon fiber
laminate with resin infusion and VARTM
processes.
Slow sp eed hardener provides about 4
hours of pot lif e at 72 F (22 C).
Fire retardant system contains hi gh
levels of phosphorous t o reduce flame
spread and smok e generation in a
composite laminate when compared to a
standard resin system.
This combinati on is formulated
specifically for r esin infusion and VARTM
processes. Do not use in open mold
applications.
Elevated temperatur e cure is required.
S he lf L i fe
Ye a r
3
Re s in
Ye a r
2
Har dene r
QC Tinting Availa
To view more PRO-SET products, give us a visit at
fiberglasssupply.com!
by | Sep 27, 2025
Property Standard Units
100g Pot Life ASTM D2471Minutes
500g Pot Life ASTM D2471Minutes
Viscosity MixedASTM D2196 cP
Viscosity (resin)ASTM D2196 cP
Viscosity (hardener)ASTM D2196 cP
COMBINED FEATURES Method Resin:Hardener
Weight 3.34:1
Weight Range 3.17:1 3.73:1
Volume 2.84:1
Volume Range 2.70:1 3.18:1
State Units 72 F (22 C)
Cured lb/gal (g/cc)9.3 (1.11)
Resin lb/gal (g/cc)9.47 (1.14)
Hardener lb/gal (g/cc)8.07 (0.97)
2015 Gougeon Brothers, Inc.
HANDLING PROPERTIES
Technical Data
72 F (22 C)
69-85
54-66
450
1,200
LAMINATING EPOXY
70
MIX RATIO
Resin:Hardener
100:30.0
100:31.5 100:26.8
100:37.0 100:31.5
100:35.2
DENSITY
Rev 2 /Dec 2015 Test specimens were neat epoxy (without fiber reinforcement).
Typical values, not to be construed as specification.
Low viscosity for good wet out of all
synthetic composite fabrics and core
materials.
Slow cure hardener provides approximately
160 minutes of working time at 72 F (22 C). A
typical laminate will gel in about 4 to 5 hours
at 72 F (22 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 172 F (78 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
2
.
M1040~M2044
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 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.
M1040~M2044
LAMINATING EPOXY
MECHANICAL PROPERTIES
RT Gelation
+ 180 F (82 C)
x 4 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
80 80 80 80
Property Standard Units
72 F (22 C)
x 2wk
RT Gelation
+ 110 F
(43 C)
RT Gelation
+ 140 F (60 C)
x 8 hrs
81
14,500(100) 14,600(101) 14,700(101) 13,500(93) 14,900(103)
7,550(52) 9,780(67) 10,200(70) 9,720(67) 9,980(69)
5.10E+05(3.52)4.48E+05(3.09)4.47E+05(3.08)4.15E+05(2.86)4.22E+05(2.91)
3.5 4.0 4.1 4.4 4.0
(3.42)5.15E+05(3.55)
(121) 16,500(114) 17,500(121)
5.10E+05(3.52)5.11E+05(3.52)
13,000(90) 17,100(118) 17,600
THERMAL PROPERTIES
Property Standard Units
72 F (22 C)
x 2wk
5.08E+05(3.5) 4.96E+05
RT Gelation
+ 110 F
(43 C)
RT Gelation
+ 140 F (60 C)
x 8 hrs
RT Gelation
+ 180 F (82 C)
x 4 hrs
RT Gelation
+ 180 F (82 C)
x 8 hrs
133 (56) 137 (58) 148 (64) 158 (70) 161 (72)
1
Additional post cure may be required; contact Technical Department for details.
2
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.
122 (50) 131 (55) 143 (62) 143 (62) 157 (69)
172 (78)
