by | Sep 27, 2025
Method State
Weight Resin
Volume Hardener
Property
Hardness
Compression Yield 10,700
Tensile Strength 6,250
Tensile Modulus 3.80E+05
Tensile Elongation
Flexural Strength 11,100
Flexural Modulus 3.70E+05
Lap Shear on 1018 Steel 2,280
Lap Shear on 2024T Aluminum 1,830
Tensile Adhesion to 1018 Steel 2,540
Tensile Adhesion to 2024T Aluminum 1,420
Property
Tg DSC Onset 1st Heat 122(50)
Heat Deflection Temperature 113(45)
2015 Gougeon Brothers, Inc.
72 F (22 C)
HANDLING PROPERTIES
Technical Data
Property Standard Units
100g Pot Life ASTM D2471minutes 9-11
Working Time (1/2″ bead)ASTM D2471minutes 18-22
Minimum Cure Temp ASTM D2196 F ( C) 45 (7)
MIX RATIO DENSITY
ADHESIVE EPOXY
Resin:HardenerResin:Hardener Units72 F (22 C)
2.12:1 100:47.2 lb/gal (g/cc)9.76 (1.17)
2.00:1 100:50.0 lb/gal (g/cc)8.76 (1.05)
MECHANICAL PROPERTIES
Standard Units 72 F (22 C) x 2 wk
ASTM D2240 Type D 82
ASTM D695 psi (MPa) (74)
ASTM D638 psi (MPa) (43)
ASTM D638 psi (GPa) (2.62)
ASTM D638 % 4.2
ASTM D790 psi (MPa) (77)
ASTM D790 psi (GPa) (2.55)
ASTM D1002psi (MPa) (16)
ASTM D1002psi (MPa) (13)
ASTM D4541psi (MPa) (18)
ASTM D4541psi (MPa) (10)
ASTM D648 F ( C)
1
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
Rev 2 / Dec 2015
THERMAL PROPERTIES
Standard Units 72 F (22 C) x 2 wk
ASTM E1356 F ( C)
COMBINED FEATURES
Shear thinning resins and hardeners are
thixotropic gels. The mixture fills gaps and
will not sag on vertical surfaces. The material
wets out the substrate, making priming or
pre-wetting unnecessary on most surfaces,
while ensuring a good bond.
Fast cure speed hardener provides
approximately 20 minutes of working time at
72 F (22 C).
Room temperature cure properties suitable
for many composite components and
structures.
High performance pre-thickened, two-part
epoxy adhesives for secondary bonding of
laminated composites, steel, aluminum, cast
iron, concrete, stone, and most wood
species. PRO-SET Adhesives will bond these
materials, to one another in any combination.
Coverage one cartridge set dispenses
approximately 47 ft of 1/4″ bead, or 17 ft of
1/2″ bead and will cover approximately 7 sq
ft when spread with a 1/8″ x 1/8″ notched
spreader, or 12 sq ft with a 1/16″ x 1/16″
notched spreader.
Shelf life is 18 months for resin and 18
months for hardener when properly stored
1
.
ADV-175
ADV-273
by | Sep 27, 2025
G/flex Epoxies are toughened, resilient two-part epoxies engineered for a superior grip to
metals, plastics, glass, masonry, fiberglass, and wet and difficult-to-bond woods. G/flex
Epoxies are available in two consistencies. G/flex 650 Epoxy is a liquid epoxy with a honey-
like consistency. G/flex 655 Epoxy Adhesive is pre-thickened with a consistency similar to
gel toothpaste. Both have an easy-to-use 1:1 mix ratio. G/flex provides a relatively long
open working time, yet it cures quickly and can be used in cool temperatures.
G/flex Epoxies are toughened to make them resilient and impact resistant, giving them the
ability to make structural bonds that can absorb the stresses of expansion, contraction,
shock, and vibration. With a modulus of elasticity of 150,000 psi, G/flex is more flexible
and can deflect further before breaking than WEST SYSTEM 105/205, while being much
stiffer than typical adhesive sealants.
G/flex adheres tenaciously to difficult-to-glue hardwoods, both tropical and domestic
varieties. It can be used to bond metals, plastics, glass, masonry, and fiberglass. G/flex is
ideal for repairs to aluminum boats and polyethylene and ABS canoes and kayaks. It can
also be used to wet out and bond fiberglass tapes and fabrics. G/flex 650 can be modified
with WEST SYSTEM fillers and additives and added to other WEST SYSTEM epoxies to
improve their toughness and flexibility.
Mix ratio by volume ……………………………………………………………………………………. 1:1
by weight ……………………………………………………………………………………….. 1.2:1
Mix viscosity G/flex 650 (at 72 F) ASTM D-2393 ……………………………….. 15,000 cps
G/flex 655 …………………………………………………………………………………………. gel
Pot life (100g at 72 F) ………………………………………………………………………. 45 minutes
Working time ………………………………………………………………………………….. 75 minutes
Initial cure …………………………………………………………………………………….. 3 to 4 hours
Workable cure* ……………………………………………………………………………. 7 to 10 hours
Minimum recommended temperature ………………………………………………… 40 F (4 C)
*Wait 24 hours before subjecting to high loads.
Specific gravity …………………………………………………………………………………………. 1.11
Hardness (Shore D) ASTM D-2240 ……………………………………………………………….. 75
Compression yield ASTM D-695 …………………………………………………………..5,270 psi
Tensile strength ASTM D638 ……………………………………………………………….3,440 psi
Tensile elongation ASTM D-638 ……………………………………………………………… 32.7%
Tensile modulus ASTM D-638 ……………………………………………………… 1.44E+05 psi
Flexural strength ASTM D-790 …………………………………………………………….5,190 psi
Flexural modulus ASTM D-790 …………………………………………………………..1.56E+05
Heat deflection temperature ASTM D-648…………………………………………………. 127 F
Onset of Tg by DSC ………………………………………………………………………………… 138 F
Ultimate Tg ……………………………………………………………………………………………. 154 F
Store at room temperature. Keep containers sealed when not in use to prevent
contamination. With proper storage, resin and hardener should remain usable for several
years.
by | Sep 27, 2025
by | Sep 27, 2025
by | Sep 27, 2025
Technical
Data Sheet
105 System
105/209
Gougeon Brothers, Inc.
P.O. Box 908
Bay City, MI 48707
866-937-8797
westsystem.com
April, 2015
105 Epoxy Resin
/ 209 Extra Slow Hardener
General Description
105/209 Epoxy is used for general coating and bonding applications in extremely warm
and/or humid conditions or when extended working time is desired at room temperature.
Provides approximately twice the working time of 206 Slow Hardener.
105/209 forms a high-strength, moisture-resistant solid with excellent bonding and
barrier coating properties. It will wet out and bond to wood fiber, fiberglass, reinforcing
fabrics, foam and other composite materials, and a variety of metals.
105/209 Epoxy can be thickened with W
EST SYSTEM fillers to bridge gaps and fill voids
and can be sanded and shaped when cured. With roller applications, it has excellent thin-
film characteristics, allowing it to flow out and self-level without fish-eyeing. Multiple
coats of 105/209 Epoxy creates a superior moisture barrier and a tough, stable base for
paints and varnishes. It is formulated without volatile solvents resulting in a very low
VOC content. It has a relatively high flash point, no strong solvent odor and does not
shrink after curing. It is not intended for clear coating natural finished wood.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) ……………. 3 parts resin : 1 part hardener
by weight ……………………………………………………………………………………. 3.68 : 1
Acceptable ratio range by weight ……………………………………………. 3.30 : 1 to 4.03 : 1
Mix viscosity (at 72 F) ASTM D-2393 ……………………………………………………. 650 cps
Pot life (100g at 72 F) ………………………………………………………………… 40-50 minutes
Working time, thin film*…………………………………………………………………. 3 to 4 hours
Cure to a solid, thin film* ……………………………………………………………. 20 to 24 hours
Cure to maximum strength ……………………………………………………………….. 4 to 9 days
Minimum recommended temperature ……………………………………………… 70 F (21 C)
*Epoxy cures faster at higher temperatures and in thicker applications.
Physical Properties of Cured Epoxy
Specific gravity …………………………………………………………………………………………. 1.16
Hardness (Shore D) ASTM D- 2240 ……………………………………………………………….. 82
Compression yield ASTM D-695 ……………………………………………………….. 12,000 psi
Tensile strength ASTM D-638 ………………………………………………………………7,300 psi
Tensile elongation ASTM D-638 ……………………………………………………………….. 3.6%
Tensile modulus ASTM D-638 ……………………………………………………… 3.98E+05 psi
Flexural strength ASTM D-790 …………………………………………………………. 12,500 psi
Flexural modulus ASTM D-790 …………………………………………………………..3.97E+05
Heat deflection temperature ASTM D-648………………………………………………… 117 F
Onset of Tg by DSC ……………………………………………………………………………….. 122 F
Ultimate Tg …………………………………………………………………………………………… 130 F
Annular shear fatigue @ 100,000 cycles …………………………………………………. 9,900 lb
VOC Content EPA Method 24/ASTM 2369- 93 …………………. 19.3 g/L or 0.16 lb./gal.
Volume percent solids …………………………………………………………………… 96.9% 3%
Storage/Shelf Life
Store at room temperature. Keep containers closed to prevent contamination. With
proper storage, resin and hardeners should remain usable for many years. After a long
storage, verify the metering accuracy of the pumps. Mix a small test batch to assure
proper curing.
Over time, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105
Resin. Warm resin to 125 F and stir to dissolve crystals.
Hardener may darken with age, but physical properties are not affected by color. Be
aware of a possible color shift if very old and new hardener are used on the same project.
by | Sep 27, 2025
Technical
Data Sheet
105 System
105/209
Gougeon Brothers, Inc.
P.O. Box 908
Bay City, MI 48707
866-937-8797
westsystem.com
April, 2015
105 Epoxy Resin
/ 209 Extra Slow Hardener
General Description
105/209 Epoxy is used for general coating and bonding applications in extremely warm
and/or humid conditions or when extended working time is desired at room temperature.
Provides approximately twice the working time of 206 Slow Hardener.
105/209 forms a high-strength, moisture-resistant solid with excellent bonding and
barrier coating properties. It will wet out and bond to wood fiber, fiberglass, reinforcing
fabrics, foam and other composite materials, and a variety of metals.
105/209 Epoxy can be thickened with W
EST SYSTEM fillers to bridge gaps and fill voids
and can be sanded and shaped when cured. With roller applications, it has excellent thin-
film characteristics, allowing it to flow out and self-level without fish-eyeing. Multiple
coats of 105/209 Epoxy creates a superior moisture barrier and a tough, stable base for
paints and varnishes. It is formulated without volatile solvents resulting in a very low
VOC content. It has a relatively high flash point, no strong solvent odor and does not
shrink after curing. It is not intended for clear coating natural finished wood.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) ……………. 3 parts resin : 1 part hardener
by weight ……………………………………………………………………………………. 3.68 : 1
Acceptable ratio range by weight ……………………………………………. 3.30 : 1 to 4.03 : 1
Mix viscosity (at 72 F) ASTM D-2393 ……………………………………………………. 650 cps
Pot life (100g at 72 F) ………………………………………………………………… 40-50 minutes
Working time, thin film*…………………………………………………………………. 3 to 4 hours
Cure to a solid, thin film* ……………………………………………………………. 20 to 24 hours
Cure to maximum strength ……………………………………………………………….. 4 to 9 days
Minimum recommended temperature ……………………………………………… 70 F (21 C)
*Epoxy cures faster at higher temperatures and in thicker applications.
Physical Properties of Cured Epoxy
Specific gravity …………………………………………………………………………………………. 1.16
Hardness (Shore D) ASTM D- 2240 ……………………………………………………………….. 82
Compression yield ASTM D-695 ……………………………………………………….. 12,000 psi
Tensile strength ASTM D-638 ………………………………………………………………7,300 psi
Tensile elongation ASTM D-638 ……………………………………………………………….. 3.6%
Tensile modulus ASTM D-638 ……………………………………………………… 3.98E+05 psi
Flexural strength ASTM D-790 …………………………………………………………. 12,500 psi
Flexural modulus ASTM D-790 …………………………………………………………..3.97E+05
Heat deflection temperature ASTM D-648………………………………………………… 117 F
Onset of Tg by DSC ……………………………………………………………………………….. 122 F
Ultimate Tg …………………………………………………………………………………………… 130 F
Annular shear fatigue @ 100,000 cycles …………………………………………………. 9,900 lb
VOC Content EPA Method 24/ASTM 2369- 93 …………………. 19.3 g/L or 0.16 lb./gal.
Volume percent solids …………………………………………………………………… 96.9% 3%
Storage/Shelf Life
Store at room temperature. Keep containers closed to prevent contamination. With
proper storage, resin and hardeners should remain usable for many years. After a long
storage, verify the metering accuracy of the pumps. Mix a small test batch to assure
proper curing.
Over time, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105
Resin. Warm resin to 125 F and stir to dissolve crystals.
Hardener may darken with age, but physical properties are not affected by color. Be
aware of a possible color shift if very old and new hardener are used on the same project.
by | Sep 27, 2025
Technical
Data Sheet
105 System
105/207
Gougeon Brothers, Inc.
P.O. Box 908
Bay City, MI 48707
866-937-8797
westsystem.com
October, 2014
105 Epoxy Resin
/ 207 Special Clear Hardener
General Description
105/207 Epoxy is used for coating and fiberglass cloth application where an exceptionally
clear, moisture-resistant, natural wood finish is desired. 105/207 is blush free and will not
turn cloudy in humid conditions. Thin film applications roll out and tip off smoothly,
requiring less sanding in preparation for finish coatings.
Three coats or more can be applied in one day without additional surface preparation.
Fewer coats are required to fill fiberglass weave and in most cases the final coating can be
sanded the following day.
105/207 forms a high- strength, moisture-resistant solid with excellent bonding and
barrier coating properties and is used as a structural adhesive for gluing and laminating.
It has excellent compatibility with paints and varnishes. An ultraviolet inhibitor in 207
helps provide a beautiful, long lasting finish when used with quality UV-filtering varnish.
It is formulated without volatile solvents resulting in a very low VOC content. It has a
relatively high flash point, no strong solvent odor and does not shrink after curing.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) …………… 3 parts resin : 1 part hardener
by weight …………………………………………………………………………. 3.64 : 1
Acceptable ratio range by weight ………………………………………. 3.41 : 1 to 4.16 :1
Mix viscosity (at 72 F) ASTM D-2393 ……………………………………………… 760cps
Pot life (100g at 72 F)………………………………………………………. 22 to 26 minutes
Working time, thin film* ………………………………………………. 110 to 12 0 minutes
Cure to a solid, thin film* ……………………………………………………. 10 to 15 hours
Cure to working strength ………………………………………………………….1 to 4 days
Minimum recommended temperature…………………………………………..60 F (16 C)
*Epoxy cures faster at higher temperatures and in thicker applications.
Physical Properties of Cured Epoxy
Specific gravity ……………………………………………………………………………….1.15
Hardness (Shore D) ASTM D-2240 ……………………………………………………..84.4
Compression yield ASTM D-695 ………………………………………………… 11,000 psi
Tensile strength ASTM D638 ……………………………………………………… 6,750 psi
Tensile elongation ASTM D-638 ……………………………………………………….. 3.8%
Tensile modulus ASTM D-638……………………………………………………. 4.40E+05
Flexural strength ASTM D-790 ………………………………………………….. 11,300 psi
Flexural modulus ASTM D-790 …………………………………………………. 4.12E+05
Heat deflection temperature ASTM D-648 ………………………………………….. 117 F
Onset of Tg by DSC ……………………………………………………………………… 116 F
Ultimate Tg ………………………………………………………………………………… 116 F
Storage/Shelf Life
Store at room temperature. Keep containers closed to prevent contamination. With
proper storage, resin and hardeners should remain usable for many years. After a long
storage, verify the metering accuracy of the pumps. Mix a small test batch to assure
proper curing.
Over time, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105
Resin. Warm resin to 125 F and stir to dissolve crystals.
Hardener may darken with age, but physical properties are not affected by color. If clear
finishing, be aware of a possible color shift if very old and new hardener are used on the
same project.
by | Sep 27, 2025
105 Epoxy Resin’ I 206 Slow Hardener’
‘ea:fuax *mE
ffiata $hest
105 System
1851?S6
Gougeon Brothers, lnc.
P.0. Box 908
Bay City, Ml 48707
866-937-8797
ulestsystem.cont
General Description
1,0512;06 Epoxy is used for general coating and bonding applications when extended
working and cure time are needed or to provide adequate working time at higher
temperatures.
lOS1206 forms a high-strength, moisture-resistant solid with excellent bonding and
barrier coating properties. It will wet out and bond to wood fiber, fiberglass, reinforcing
fabrics, foam and other composite materials, and a variety of metals.
t1S1206 Epoxy can be thickened with’WEST SYSTEM fillers to bridge gaps and fill voids
and can be sanded and shaped when cured.
‘With
roller applications, it has excellent thin-
film characteristics, allowing it to flow out and self-level without “fish-eyeing.” Multiple
coats of 1,051206 Eporry ueate a superior moisture barrier and a tough, stable base for
paints and varnishes. It is formulated without volatile solvents resulting in a very low
VOC .o.rt.trt. It has a relatively high flash point, no sffong solvent odor and does not
shrink after curing. It is not intended for clear coating natural finished wood.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) ..””””‘.’….5 parts resin : 1 parthardener
,.5.36 : 1,
Acceptable ratio range by weight ..”-.-…’..4.84 : l to 6.19 :1
Mix viscosity (ar72″F) ASTM D-2393 725 cps
by weight
Pot life (1009 at 72″F) ……….. .20 to 25 minutes
‘l7orking
time, thin filmo
Cure to a solid, thin filmo
Cure to working strength
Minimum recommended temperatLlre 60’F (16’C)
“Epory cures faster
at higher temperatures and in thicker applications’
Physical Properties of Cured Epoxy
Specific graviry …–………’…….1’18
Hardness (Shore D) ASTM D-2240 …….”..’.’ 83
Compression yield ASTM D-695 11,500 psi
Tensile strength ASTM D638 7,300 psi
Tensile elongation ASTM D-538 4.50/o
Tensile modulus ASTM D-638 4.50E+05psi
90to 1.10 minutes
,10 to 15 hours
1 to 4 days
Flexural strength ASTM D-790
Flexural modulus ASTM D-790
11,800 psi
4.50E+05
Heat deflection temperature ASTM D-648…”‘…. ……..’J’23″F
Onset of Tg by DSC ‘-…..’..”1’26″F
Ultimate Tg …………. ..””.’..’.139’F
Storage/Shelf Life
Store at room temperafure. Keep containers closed to prevent contamination.
rVith
proper storage, resin and hardeners should remain usable for many years’ After a long
storage, verify the metering accvracy of the pumps. Mix a small test batch to assure
proper curing.
Over rime, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freezelthaw cycles during storage may cause crystallization of 105
Resin.
‘S0arm
resin to 125’F and stir to dissolve crystals. Hardener may darken with age,
but physical properties are not affected by color. Be aware of a possible color shift if very
old and new hardener are used on the same project.
0ctober,2014
by | Sep 27, 2025
Technical
Data Sheet
105 System
105/206
Gougeon Brothers, Inc.
P.O. Box 908
Bay City, MI 48707
866-937-8797
westsystem.com
October, 2014
105 Epoxy Resin
/ 206 Slow Hardener
General Description
105/206 Epoxy is used for general coating and bonding applications when extended
working and cure time are needed or to provide adequate working time at higher
temperatures.
105/206 forms a high-strength, moisture-resistant solid with excellent bonding and
barrier coating properties. It will wet out and bond to wood fiber, fiberglass, reinforcing
fabrics, foam and other composite materials, and a variety of metals.
105/206 Epoxy can be thickened with WEST SYSTEM fillers to bridge gaps and fill voids
and can be sanded and shaped when cured. With roller applications, it has excellent thin-
film characteristics, allowing it to flow out and self -level without fish-eyeing. Multiple
coats of 105/206 Epoxy create a superior moisture barrier and a tough, stable base for
paints and varnishes. It is formulated without volatile solvents resulting in a very low
VOC content. It has a relatively high flash point, no strong solvent odor and does not
shrink after curing. It is not intended for clear coating natural finished wood.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) …………….. 5 parts resin : 1 part hardener
by weight ……………………………………………………………………………………. 5.36 : 1
Acceptable ratio range by weight …………………………………………….. 4.84 : 1 to 6.19 :1
Mix viscosity (at 72 F) ASTM D-2393 …………………………………………………… 725 cps
Pot life (100g at 72 F) ……………………………………………………………… 20 to 25 minutes
Working time, thin film* ……………………………………………………….. 90 to 110 minutes
Cure to a solid, thin film* ……………………………………………………………. 10 to 15 hours
Cure to working strength …………………………………………………………………. 1 to 4 days
Minimum recommended temperature ………………………………………………. 60 F (16 C)
*Epoxy cures faster at higher temperatures and in thicker applications.
Physical Properties of Cured Epoxy
Specific gravity ………………………………………………………………………………………… 1.18
Hardness (Shore D) ASTM D- 2240 ……………………………………………………………….. 83
Compression yield ASTM D-695 ……………………………………………………….. 11,500 psi
Tensile strength ASTM D638 ………………………………………………………………7,300 psi
Tensile elongation ASTM D-638 ……………………………………………………………….. 4.5%
Tensile modulus ASTM D-638 ………………………………………………………. 4.60E+05psi
Flexural strength ASTM D-790 ………………………………………………………… 11,800 psi
Flexural modulus ASTM D-790 ………………………………………………………….4.50E+05
Heat deflection temperature ASTM D-648…………………………………………………. 123 F
Onset of Tg by DSC ……………………………………………………………………………….. 126 F
Ultimate Tg …………………………………………………………………………………………… 139 F
Storage/Shelf Life
Store at room temperature. Keep containers closed to prevent contamination. With
proper storage, resin and hardeners should remain usable for many years. After a long
storage, verify the metering accuracy of the pumps. Mix a small test batch to assure
proper curing.
Over time, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105
Resin. Warm resin to 125 F and stir to dissolve crystals. Hardener may darken with age,
but physical properties are not affected by color. Be aware of a possible color shift if very
old and new hardener are used on the same project.
by | Sep 27, 2025
Technical
Data Sheet
105 System
105/206
Gougeon Brothers, Inc.
P.O. Box 908
Bay City, MI 48707
866-937-8797
westsystem.com
October, 2014
105 Epoxy Resin
/ 206 Slow Hardener
General Description
105/206 Epoxy is used for general coating and bonding applications when extended
working and cure time are needed or to provide adequate working time at higher
temperatures.
105/206 forms a high-strength, moisture-resistant solid with excellent bonding and
barrier coating properties. It will wet out and bond to wood fiber, fiberglass, reinforcing
fabrics, foam and other composite materials, and a variety of metals.
105/206 Epoxy can be thickened with WEST SYSTEM fillers to bridge gaps and fill voids
and can be sanded and shaped when cured. With roller applications, it has excellent thin-
film characteristics, allowing it to flow out and self -level without fish-eyeing. Multiple
coats of 105/206 Epoxy create a superior moisture barrier and a tough, stable base for
paints and varnishes. It is formulated without volatile solvents resulting in a very low
VOC content. It has a relatively high flash point, no strong solvent odor and does not
shrink after curing. It is not intended for clear coating natural finished wood.
Handling Characteristics
Mix ratio by volume (300 Mini Pump ratio) …………….. 5 parts resin : 1 part hardener
by weight ……………………………………………………………………………………. 5.36 : 1
Acceptable ratio range by weight …………………………………………….. 4.84 : 1 to 6.19 :1
Mix viscosity (at 72 F) ASTM D-2393 …………………………………………………… 725 cps
Pot life (100g at 72 F) ……………………………………………………………… 20 to 25 minutes
Working time, thin film* ……………………………………………………….. 90 to 110 minutes
Cure to a solid, thin film* ……………………………………………………………. 10 to 15 hours
Cure to working strength …………………………………………………………………. 1 to 4 days
Minimum recommended temperature ………………………………………………. 60 F (16 C)
*Epoxy cures faster at higher temperatures and in thicker applications.
Physical Properties of Cured Epoxy
Specific gravity ………………………………………………………………………………………… 1.18
Hardness (Shore D) ASTM D- 2240 ……………………………………………………………….. 83
Compression yield ASTM D-695 ……………………………………………………….. 11,500 psi
Tensile strength ASTM D638 ………………………………………………………………7,300 psi
Tensile elongation ASTM D-638 ……………………………………………………………….. 4.5%
Tensile modulus ASTM D-638 ………………………………………………………. 4.60E+05psi
Flexural strength ASTM D-790 ………………………………………………………… 11,800 psi
Flexural modulus ASTM D-790 ………………………………………………………….4.50E+05
Heat deflection temperature ASTM D-648…………………………………………………. 123 F
Onset of Tg by DSC ……………………………………………………………………………….. 126 F
Ultimate Tg …………………………………………………………………………………………… 139 F
Storage/Shelf Life
Store at room temperature. Keep containers closed to prevent contamination. With
proper storage, resin and hardeners should remain usable for many years. After a long
storage, verify the metering accuracy of the pumps. Mix a small test batch to assure
proper curing.
Over time, 105 Resin will thicken slightly and will therefore require extra care when
mixing. Repeated freeze/thaw cycles during storage may cause crystallization of 105
Resin. Warm resin to 125 F and stir to dissolve crystals. Hardener may darken with age,
but physical properties are not affected by color. Be aware of a possible color shift if very
old and new hardener are used on the same project.
