by | Sep 27, 2025
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
ES-218 is white, thixotropic, room temperature cure, sandable epoxy surface coat designed for duplication work. The popular handling
properties of ES-218 produce accurate, detailed, chip resistant surface coat duplications in epoxy laminate fabrications.
The versatility of this resin system, when used with ES-218-1 Hardener, also doubles as a chemical resistant epoxy coating used to fill
surface texture on composite parts. Typically one application applied using brush or roller is all that is required to fill in the texture or weave
in cloth fabric. NOTE: Do not topcoat directly over ES-218-1 composite coating applications. Sand ES-218-1 and use surface primer
products as recommended by topcoat manufacturer. Typical applications include: masters, models, patterns, duplicating, engineering
tooling, checking and drill fixtures and as a composite coating.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
ES-218R/ES-218H ES-218 R/ES-218-1H
Mix Ratio (parts by weight) ………………………………………………………….. 100R/14H …………………………………………..100R/16H
Mix Ratio (parts by volume) …………………………………………………………. 5.9R:1H ………………………………………………5R:1H
Work Life (228-232 gram mass) …………………………………………………… 22 minutes ………………………………………….16 minutes
Mixed Viscosity ………………………………………………………………………….. 25,000cps …………………………………………..14,500cps
Mixed Density…………………………………………………………………………….. 1.39 g/cc …………………………………………….1.28 g/cc
Cure-to-Demold Time …………………………………………………………………. 8-12 hours…………………………………………..8-12 hours
Cure-to-Sanding Time ………………………………………………………………… N/A …………………………………………………….4-6 hours
Complete Cure …………………………………………………………………………… 3-5 days ……………………………………………..3-5 days
Mixed Color ……………………………………………………………………………….. White ………………………………………………….White
Shelf Life Resin (in original unopened containers) ………………………….. 2 years ……………………………………………….2 years
Shelf Life Hardener (in original unopened containers) …………………….. 2 years ……………………………………………….2 years
TYPICAL PHYSICAL PROPERTIES (Testing conducted on cured cast bar samples)
Tensile Strength …………………………………………………………………………. 4,132psi (29MPa) ………………………………..5,973psi (41MPa)
Tensile Modulus …………………………………………………………………………. 868,900psi (5,991MPa) ………………………..1,146,000psi (7,901MPa)
Tensile Elongation ……………………………………………………………………… 0.7% …………………………………………………..0.6%
Flexural Strength ………………………………………………………………………… 7,110psi (49MPa) ………………………………..10,070psi (69MPa)
Flexural Modulus ………………………………………………………………………… 414,800psi (2,860MPa) ………………………..573,800psi (3,956MPa)
Compressive Strength ………………………………………………………………… 7,987psi (55MPa) ………………………………..13,350psi (92MPa)
Compressive Modulus ………………………………………………………………… 149,600psi (1,032MPa) ………………………..244,700psi (1,687MPa)
Izod Impact Strength …………………………………………………………………… 5.7 in-lb/ft ……………………………………………5.1 in-lb/ft
Shore Hardness …………………………………………………………………………. 83 Shore D …………………………………………84 Shore D
Heat Deflection Temperature @ 264 psi ……………………………………….. 114 F (46 C) ……………………………………….167 F (52 C)
Shrinkage ………………………………………………………………………………….. 0.002 in/in …………………………………………..0.002 in/in
Moisture Absorption (ASTM D-570.88) …………………………………………. N/A …………………………………………………….0.29%
ES-218 Series Tech/Revised 1/13/15
Supersedes 5/16/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
ES-218
EPOXY SURFACE COAT
SERIES
WHITE, SANDABLE
by | Sep 27, 2025
SURFACE COATS
ROOM & HIGH TEMPERATURE
EPOXY SURFACE COATS – ROOM TEMPERATURE
ProductHardener
Tg
( F)
Mixed
Ratio
Pot Life
(min/g)
Color
Shore
Hardness
Description & Applications
ES-218 ES-218 H 114 100/14 22/230 White 83 D
Sandable system for durable high quality
surface reproductions; Ideal for taking
laminating duplicates
TCC-352 TCC-352 H 180* 100/15 20/100 Lt. Gray 89 D
Wear-resistant system for durable
surface reproductions; Ideal for checking
and trimming fixtures
SIKA ADVANCED RESINS
30800 Stephenson Highway
Madison Heights, MI 48071
(248) 577 0020
www.SikaAdvancedResins.us
CUSTOMER SERVICE
(248) 588 2270
Advanced.Resins@us.sika.com
Our most current General Sales Conditions shall apply.
Please consult the Data Sheet prior to any use and processing.
EPOXY SURFACE COATS – HIGH TEMPERATURE
Product Hardener
Tg
( F)
Mixed
Ratio
Pot Life
(min/g)
Color
Shore
Hardness
Description & Applications
S11 S11 H 200 100/1615/232Lt. Blue88 D
System for Plastic-Faced Plaster (PFP) and
general applications, including vacuum forming
molds and nesting fixtures
SP-707 SP-707 H 220 100/1523/230 Gray 90 D
Aluminum-filled system used for laminated
vacuum form, drape form, RIM, RTM, and
injection molds
ES-221 ES-221 H 230 100/1322/226
Black or
White
90 D
Polishable system for duplicating of clay models,
PFP molds, and high temperature tools requiring
a gloss finish
ES-224 ES-224 H 264 100/9 60/327 Gray 90 D
Abrasion-resistant system used for laminated
vacuum form, drape form, RIM, RTM, and
intermediate high temperature production tools
ESG-215 Series
ESG-215 H 268 100/1443/240 Black 90 D Graphite-filled repair paste used for surface
repairs of high temperature epoxy composite
moldsESG-215-T H371100/1543/240 Black 90 D
ES-215 Series
ES-215-1 H301 100/1816/240Black 89 D
Graphite-filled system used for high temperature
composite molds and autoclave tooling
ES-215-2 H307 100/2283/240 Black 88 D
ES-215-IHG382 100/17200/280Black 89 D
* Peak Use Temperature
POLYESTER SURFACE COATS – HIGH TEMPERATURE
ProductHardener
Tg
( F)
Mixed
Ratio
Viscosity Mixed
(cps)
Pot Life
(min/g)
Shore
Hardness
Description & Applications
APG 1750 SMEKP 400*100/2 Thixotropic 22/102 87 D
Styrene-free system most commonly
used in high temperature tools for epoxy
infusion, cultured marble molds,
thermoforming molds, FRP molds, and
RTM mold repair
by | Sep 27, 2025
Page 1/3- July 13, 2017 US Rev 02
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
EPOLAM 2500
Technical Data Sheet
FLAME RETARDANT LAMINATING SYSTEM
For FAR 25.853a Composite Laminating Applications
Description
Epolam 2500 is designed for production of composite parts requiring flame and temperature resistance. Epolam
2500 meets the requirements of FAR 25.853a and Eurocopter specification ECS.2196.20 for interior fittings
manufacture and repair.
APPLICATIONS
High performance flame retardant marine, architectural, aerospace, transportation applications
Suitable for wet layup, vacuum-bagging
Properties
No aromatic amines
Self-extinguishing FAR 25
High Modulus
Good mechanical properties
Temperature resistance 100 C
RoHS and REACH compliant
Physical Properties
Resin Hardener
Composition Epoxy Amine
Mix Ratio, by weight
By volume
100
100
22
29
Appearance Liquid Liquid
Color White Light amber
Viscosity @ 77 F (25 C) mPa.s Brookfield LVT 12,700 112
Density @ 77 F (25 C) Lbs./gal. (g/cc) ISO 1675:1985 10.706 (1.28) 7.956 (0.96)
Viscosity, mixed @ 77 F (25 C)
mPa.s
Brookfield LVT 3,190
Gel Time, 500g at 77 F (25 C) 78 minutes
Cured density @ 74 F (23 C)
Lbs./gal (g/cm
3
)
ISO 2781: 1985 10.07 (1.21)
PROCESSING CONDITIONS
Stir the resin. Prepare the mixing according to the indicated ratio, then carry out impregnation
reinforcement materials using standard lamination techniques..
Page 2/3- July 13, 2017 US Rev 02
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
EPOLAM 2500
Technical Data Sheet
FLAME RETARDANT LAMINATING SYSTEM
For FAR 25.853a Composite Laminating Applications
*Cured-7 days at 77 F (25 C) **Cured 4 hours at 212 F (100 C)
Results are average values on laboratory prepared test samples
Neat Cured Properties Tested at 74 F (23 C)
Test
Method
Unit(s)
Test
Results
Glass Transition Temperature
(Tg)
* R.T Cure
**212 F Post-Cure
ASTM E1545 F ( C)
139 (59)
220 (104)
Hardness
* R.T Cure
**212 F Post-Cure
ASTM D-2240
Shore D
91
90
Flexural Strength
* R.T. Cure
**212 F Post-Cure
ASTM D790
psi (MPa)
8,733 (60.3)
9,790 (67.6)
Flexural Modulus
* R.T. Cure
**212 F Post-Cure
ASTM D790
psi (MPa)
699,992 (4,830)
593,023 (4,092)
Tensile Strength
* R.T. Cure
**212 F Post-Cure
ASTM D638
psi (MPa)
5,604 (38.7)
6,073 (41.9)
Tensile Modulus
* R.T. Cure
**212 F Post-Cure
ASTM D638
psi (MPa)
422,647 (2,916)
339,393 (2,342)
Tensile Elongation
* R.T. Cure
**212 F Post-Cure
ASTM-D638
%
1.5
2.1
Composite Cured Properties Tested at 74 F (23 C)
Test
Method
Unit(s)
Test
Results
Flexural Strength
* R.T Cure
**212 F Post-Cure
ASTM D790
psi (MPa)
38,076 (263)
38,666 (267)
Flexural Modulus
* R.T Cure
**212 F Post-Cure
ASTM D790
psi (MPa)
1,917,779 (13,233)
1,694,618 (11,693)
Tensile Strength
* R.T Cure
**212 F Post-Cure
ASTM D638
psi (MPa)
30,885 (213)
28,316 (195)
Tensile Modulus
* R.T Cure
**212 F Post-Cure
ASTM D638
psi (MPa)
820,545 (5,662)
737,544 (5,089)
Tensile Elongation
* R.T Cure
**212 F Post-Cure
ASTM D638
%
6.7
6.3
Page 3/3- July 13, 2017 US Rev 02
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
EPOLAM 2500
Technical Data Sheet
FLAME RETARDANT LAMINATING SYSTEM
For FAR 25.853a Composite Laminating Applications
STORAGE CONDITIONS
This product has a shelf life of 12 months as indicated by the expiration date on the container when stored in original
unopened containers between 59 77 F (15 25 C). Any opened can must be tightly closed.
HANDLING PRECAUTIONS
Normal health and safety precautions should be observed when handling these products :
Ensure good ventilation
Wear gloves, and safety glasses
For additional information, please consult the Safety Data Sheet (SDS).
DISCLAIMER
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions.
Seller cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products,
may be used. It is the responsibility of the user to determine the suitability of the SikaAxson s products, under their own conditions, before
commencing with the proposed application. In no event shall SikaAxson US be liable for any direct, indirect, punitive, incidental, special, and/or
consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
by | Sep 27, 2025
– PRODUCT BULLETIN
www.axson-technologies.com 800.344.7776 axsonmh@axson.com
31200 Stephenson Hwy Madison Heights, MI 48071 Ph 248.588.2270 Fax 248.588.5909
DESCRIPTION
EL-337 is an improved, health-safe, two component, filled, non-staining, high temp epoxy laminating system specifically
developed for room temp hardening (B Stage) with high temp properties for high temp tooling applications. EL-337 has
excellent handling properties and fabric wet-out to produce a void free tool with high dimensional stability. EL-337 can be
used in the construction of large or small tools, as well as production parts. EL-337 can also be used with ADTECH High
Temp Surface Coats ES-219 and ES-229. Tools made with EL-337 can be used at continuous temperature of 320 F
(160 C), and intermittent temperatures up to 375 F (191 C). While EL-337 will gel at room temp, it must be post-cured to
achieve ultimate strength. The system contains no MDA or VCHD. Typical applications include: vacuum form molds,
prototype injection molds, high temperature bonding fixtures, spray metal molds, compression molds, high
temperature laminated molds and parts to be used in high temp applications.
TYPICAL HANDLING CHARACTERISTICS @ 77 F (25 C)
Mix Ratio (parts by weight) ……………………………………………………………………………………………………….. 100R/16H
Mix Ratio (parts by volume) ………………………………………………………………………………………………………. 4.86R/1H
Specific Gravity ……………………………………………………………………………………………………………………….. 1.26 g/cc
Mixed Viscosity ……………………………………………………………………………………………………………………….. 3000-5000 cps
Work Life (232 gram mass) ………………………………………………………………………………………………………. 45-60 minutes
Demold Time …………………………………………………………………………………………………………………………… 16-24 hours
Complete Cure ………………………………………………………………………………………………………………………… 3-5 days
Resin Color……………………………………………………………………………………………………………………………… Gray
Hardener Color………………………………………………………………………………………………………………………… Amber
Mixed Color …………………………………………………………………………………………………………………………….. Gray
Shelf Life Resin & Hardener (in original unopened containers) …………………………………………………….. 2 years
TYPICAL PHYSICAL PROPERTIES (6 Layer, 10 Ounce Glass Fabric Laminate):
Ultimate Tensile Strength ……………………………………………………………………………………………………… 27,285psi (188MPa)
Ultimate Flexural Strength …………………………………………………………………………………………………….. 39,035psi (269MPa)
Flexural Modulus ………………………………………………………………………………………………………………….. 1,300,000psi (8,963MPa)
Cast Bar:
Ultimate Compressive Strength ……………………………………………………………………………………………… 14,930psi (103MPa)
Izod Impact Strength (notched) ……………………………………………………………………………………………… 5.29 in-lbf/in
Hardness …………………………………………………………………………………………………………………………….. 88 Shore D
Shrinkage ……………………………………………………………………………………………………………………………. 0.00132 in/in
Coefficient of Thermal Expansion (TMA) (ppm/ F ( C)) ……………………………………………………………. 24 (43)
Tensile Elongation ……………………………………………………………………………………………………………….. 2%
Glass Transition Temperature (Tg by DMA) ……………………………………………………………………………. 238 F (115 C)
Tested @ 300 F (149 C) (ASTM D-790):
Ultimate Flexural Strength …………………………………………………………………………………………………….. 8,491psi (59MPa)
Flexural Modulus ………………………………………………………………………………………………………………….. 820,000psi (5,654MPa)
EL-337
EPOXY LAMINATING
SYSTEM
HIGH TEMPERATURE, GRAY
FILLED
Page 2 of 2
EL-337
Product Technical Bulletin Cont.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
PRELIMINARY CURE SCHEDULE
On model: Cure for 24 hours @ 77 F (25 C)
+ 2 hours @ 150 F (66 C)
You may attach support structure and demold tool after this schedule is completed.
POST CURE SCHEDULE
After completing the Preliminary Cure Schedule, complete the following:
2 hours @ 200 F (93 C)
2 hours @ 250 F (121 C)
3 hours @ 300 F (149 C)
HEATING AND COOLING RATES DURING POST CURE
Always allow tools made with ADTECH high temp systems to gel at room temperature before subjecting them to post cure
(24 hours is usually sufficient). This will prevent excessive exotherm and shrinkage from occurring.
When oven curing laminated molds, always place the mold in a room temperature oven. Increase oven temperature at a rate
of no more than 50 F (30 C) per hour. When heat cure is completed, turn off oven and allow molds to remain in the oven.
Never remove mold from oven until mold temperature has been lowered to less than100 F (38 C).
EL-337 Tech/Revised 1/6/15
Supersedes 5/19/14
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions. Seller
cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s products, may be used.
It is the responsibility of the user to determine the suitability of the Axson Technologies products, under their own conditions, before commencing with
the proposed application. In no event shall Axson Technologies, Inc. be liable for any direct, indirect, punitive, incidental, special, and/or consequential
damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.
Page 2 of 2
EL-337
Product Technical Bulletin Cont.
AXSON TECHNOLOGIES US
+1 248 588 2270
axsonmh@axson.com
axson-na.com
CHINA
+86 21 58 68 30 37
marketing.china@axson.com
GERMANY
+49 6 07 44 07 11-0
verkauf@axson.com
INDIA
+91 20 25 56 07 10-11
info.india@axson.com
ITALY
+39 02 96 70 23 36
axson@axson.it
JAPAN
+81 5 64 26 25 91
sales.japan@axson.com
FRANCE
Global Headquarters
+33 1 34 40 34 60
axson@axson.com
axson-technologies.com
MEXICO
+52 55 52 64 49 22
marketing@axson.com.mx
MIDDLE EAST
+971 7 2432227
axsonmideast@axson.com
SLOVAKIA
+42 1 76 42 25 26
axson.sk@axson.com
SPAIN
+34 9 32 25 16 20
spain@axson.com
U.K.
+44 16 38 66 00 62
sales.uk@axson.com
by | Sep 27, 2025
SikaBiresin
L337
1 /
2
PRODUCT DATA SHEET
SikaBiresin L337
Version 01.01 (08 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin L337 (Formerly EL-337)
Filled Epoxy Laminating System for High Temperature Applications
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin L337
is a two component, filled,
non-staining epoxy laminating system that
provides room temperature hardening (B
Stage) and is designed for high temperature
laminating and tooling applications.
SikaBiresin L337
has excellent handling
properties and fabric wet-out to produce a
void free tool with high dimensional stability.
Tools made with SikaBiresin L337 can be
used at continuous temperatures of 230 F
(110 C) and up to a 250 F (121 C) intermittent
use maximum. While SikaBiresin L337
will
gel at room temperature, it must be post-
cured to achieve ultimate strength.
PRODUCT BENEFITS
– For applications up to 250 F (121 C)
– High mechanical properties
– Excellent cloth wet-out
– Excellent dimensional stability
AREAS OF APPLICATION
Typical applications include vacuum form
molds, prototype injection molds, high
temperature bonding fixtures, spray metal
molds, compression molds, high
temperature laminating molds and parts to
be used in high temperature applications.
SikaBiresin L337 can be used with Sika s
intermediate-to-high temperature surface
coats: ES-229, SP-707, or ES-224.
Properties
SikaBiresin L337 (A)
Resin
SikaBiresin L337 (B)
Hardener
Composition Epoxy Amine
Mix ratio by weight
Mix ratio by volume
100
100
16
21
Aspect Gray liquid Clear amber liquid
Color (mixed) n/a Grey
Viscosity Brookfield (mixed) n/a 3,000 – 5,000 cps
Density at 77 F (25 C) (mixed) n/a 10.51 lbs./gal
Pot life (228g) at 77 F (25 C) n/a 45 – 60 Minutes
SikaBiresin
L337
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikaindustry.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT FORM UNLESS NOTED)
PROCESSING
Preliminary self-support cure schedule: Cure
for 24 hours at 77 F (25 C) + 4 hours at 125 F
(51.6 C) – 140 F (60 C) range. You may attach
support structure and demold tool after this
schedule is completed before additional cure
is given.
Alternative post-cure options can be used, if
needed, in processing. Contact Sika Corporation s
Industry Technical Services Department at
tsmh@us.sika.com for additional information and
advice.
Heating and cooling rates during post-cure:
Always allow tools made with Sika high
temperature systems to gel at room
temperature before subjecting them to post
cure (24 hours is usually sufficient). This will
prevent excessive exotherm and shrink stress
from occurring. When oven curing laminated
molds, always place mold in a room
temperature oven and increase temperature
at a rate of no more than 50 F (30 C) per hour.
When heat cure is completed, turn off oven
and allow molds to remain in the oven. Never
remove mold from oven until mold
temperature has been lowered to less than
100 F (38 C).
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Shelf life of resin and hardeners is 24 months
when stored in original, unopened containers
between 65-77 F (15 – 25 C). Keep containers
tightly closed.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1 -800-424-9300,
International703-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
SikaBiresin L337 (A)
Resin
SikaBiresin L337 (B)
Hardener
Hardness, Shore D, ASTM D2240 88
Flexural strength, ASTM D790
A
39,035psi (269MPa)
Flexural modulus, ASTM D790
A
1,300,000psi (8,963MPa)
Tensile strength, ASTM D638
A
27,285psi (188MPa)
Compressive strength, ASTM D695 14,930 psi (103 MPa)
Izod Impact Strength (notched) , ASTM D256 5.29 in-lbf/in
Glass Transition Temperature (Tg by DMA) 238 F (115 C)
Coefficient of thermal expansion – TMA 24 ppm/ F (43 ppm/ C)
(A)
6-Layer, 10 ounce glass fabric laminate
Cured 24 hours at 77 F (25 C) + 2 hours at 150 F (66 C) + 2 hours at 200 F (93 C) + 2 hours at 250 F (121 C) + 3 hours at 300 F
(149 C).
by | Sep 27, 2025
SikaBiresin CR
128
1 /
2
PRODUCT DATA SHEET
SikaBiresin CR128
Version 01.01 (08 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin CR128 (Formerly EL-336)
Unfilled Epoxy Laminating System for High Temperature Applications
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin CR128 is an unfilled, non- staining,
epoxy laminating system that provides room
temperature hardening (B Stage) and is
designed for high temperature laminating and
tooling applications. SikaBiresin CR128 has
excellent handling properties and fabric wet-
out to produce a void free tool with high
dimensional stability. SikaBiresin CR128 is
availble with a choice of two hardener options
with different pot lifes for process flexibility.
Tools made with SikaBiresin CR128 can be used
at continuous temperatures of 230 F (110 C)
and up to a 250 F (121 C) intermittent use
maximums. While SikaBiresin CR128 will gel at
room temperature, it must be post-cured to
achieve ultimate strength.
PRODUCT BENEFITS
– For applications up to 250 F (121 C)
– High mechanical properties
– Two hardener choices (fast and slow)
– Excellent cloth wet-out
– Excellent dimensional stability
– Good handling properties
AREAS OF APPLICATION
Typical applications include vacuum form
molds, prototype injection molds, high
temperature bonding fixtures, spray metal
molds, compression molds, high temperature
laminating molds and parts for intermediate
to high temperature applications
SikaBiresin CR128 can be used with Sika s h igh
temperature surface coats SP-707, ES-221, or
ES-224.
Properties
SikaBiresin CR128 (A)
Resin
SikaBiresin CH128-2 (B)
Hardener
SikaBiresin CH128-4 (B)
Hardener
Composition Epoxy Amine Amine
Mix ratio by weight 100 22 27
Aspect Clear liquid Clear liquid Clear liquid
Color (mixed) n/a Clear Clear amber
Viscosity Brookfield (mixed) n/a 2,000 – 3,000 cps 1,400 cps 1,600
Density at 77 F (25 C) (mixed) n/a 9.51 lbs./gal n/a
Pot life (228g) at 77 F (25 C) n/a 35 – 50 Minutes 120 140 Minutes
SikaBiresin
CR
128
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikaindustry.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT FORM)
PROCESSING
Preliminary self-support cure schedule: Cure
for 24 hours at 77 F (25 C) + 4 hours at 125 F
(51.6 C) – 140 F (60 C). You may attach
support structure and demold tool after this
schedule is completed before additional cure
is given.
Alternative post-cure options can be used, if
needed, in processing. Contact Sika Corporation s
Industry Technical Services Department at
tsmh@us.sika.com for additional information and
advice.
Heating and cooling rates durng post-cure:
Always allow tools made with Sika high
temperature systems to gel at room
temperature before subjecting them to post
cure (24 hours is usually sufficient). This will
prevent excessive exotherm and shrink stress
from occurring. When oven curing laminated
molds, always place mold in a room
temperature oven and increase temperature
at a rate of no more than 50 F (30 C) per hour.
When heat cure is completed, turn off oven
and allow molds to remain in the oven. Never
remove mold from oven until mold
temperature has been lowered to less than
100 F (38 C).
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Shelf life of resin and hardeners is 24 months
when stored in original, unopened containers
between 65-77 F (15 – 25 C). Keep containers
tightly closed.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
703-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
Mixed with SikaBiresin CR128 (A) Resin
SikaBiresin CH128-2 (B)
Hardener
SikaBiresin CH128-4 (B)
Hardener
Shore D hardness, ASTM D2240 88 88
Compressive strength, ASTM D695 13,390 psi (92 MPa) 15,910 psi (110 MPa)
Tensile elongation, ASTM D638 3.0% n/a
Heat Distortion Temperature (HDT) (66 psi)
(264 psi)
n/a
n/a
278 F (137 C)
263 F (128 C)
Coefficient of Thermal Expansion (CTE) – TMA 30 ppm/ F (54 ppm/ C) n/a
Notched Impact strength, ASTM D256 7.0 in-lbf/in n/a
Cured 24 hours at 77 F (25 C) + 2 hours at 150 F (66 C) + 2 hours at 200 F (93 C) + 2 hours at 250 F (121 C) + 3 hours at 300 F
(149 C).
by | Sep 27, 2025
SikaBiresin CR
128
1 /
2
PRODUCT DATA SHEET
SikaBiresin CR128
Version 01.01 (08 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin CR128 (Formerly EL-336)
Unfilled Epoxy Laminating System for High Temperature Applications
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin CR128 is an unfilled, non- staining,
epoxy laminating system that provides room
temperature hardening (B Stage) and is
designed for high temperature laminating and
tooling applications. SikaBiresin CR128 has
excellent handling properties and fabric wet-
out to produce a void free tool with high
dimensional stability. SikaBiresin CR128 is
availble with a choice of two hardener options
with different pot lifes for process flexibility.
Tools made with SikaBiresin CR128 can be used
at continuous temperatures of 230 F (110 C)
and up to a 250 F (121 C) intermittent use
maximums. While SikaBiresin CR128 will gel at
room temperature, it must be post-cured to
achieve ultimate strength.
PRODUCT BENEFITS
– For applications up to 250 F (121 C)
– High mechanical properties
– Two hardener choices (fast and slow)
– Excellent cloth wet-out
– Excellent dimensional stability
– Good handling properties
AREAS OF APPLICATION
Typical applications include vacuum form
molds, prototype injection molds, high
temperature bonding fixtures, spray metal
molds, compression molds, high temperature
laminating molds and parts for intermediate
to high temperature applications
SikaBiresin CR128 can be used with Sika s h igh
temperature surface coats SP-707, ES-221, or
ES-224.
Properties
SikaBiresin CR128 (A)
Resin
SikaBiresin CH128-2 (B)
Hardener
SikaBiresin CH128-4 (B)
Hardener
Composition Epoxy Amine Amine
Mix ratio by weight 100 22 27
Aspect Clear liquid Clear liquid Clear liquid
Color (mixed) n/a Clear Clear amber
Viscosity Brookfield (mixed) n/a 2,000 – 3,000 cps 1,400 cps 1,600
Density at 77 F (25 C) (mixed) n/a 9.51 lbs./gal n/a
Pot life (228g) at 77 F (25 C) n/a 35 – 50 Minutes 120 140 Minutes
SikaBiresin
CR
128
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikaindustry.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT FORM)
PROCESSING
Preliminary self-support cure schedule: Cure
for 24 hours at 77 F (25 C) + 4 hours at 125 F
(51.6 C) – 140 F (60 C). You may attach
support structure and demold tool after this
schedule is completed before additional cure
is given.
Alternative post-cure options can be used, if
needed, in processing. Contact Sika Corporation s
Industry Technical Services Department at
tsmh@us.sika.com for additional information and
advice.
Heating and cooling rates durng post-cure:
Always allow tools made with Sika high
temperature systems to gel at room
temperature before subjecting them to post
cure (24 hours is usually sufficient). This will
prevent excessive exotherm and shrink stress
from occurring. When oven curing laminated
molds, always place mold in a room
temperature oven and increase temperature
at a rate of no more than 50 F (30 C) per hour.
When heat cure is completed, turn off oven
and allow molds to remain in the oven. Never
remove mold from oven until mold
temperature has been lowered to less than
100 F (38 C).
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Shelf life of resin and hardeners is 24 months
when stored in original, unopened containers
between 65-77 F (15 – 25 C). Keep containers
tightly closed.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
703-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452.
Properties, Test Method
Mixed with SikaBiresin CR128 (A) Resin
SikaBiresin CH128-2 (B)
Hardener
SikaBiresin CH128-4 (B)
Hardener
Shore D hardness, ASTM D2240 88 88
Compressive strength, ASTM D695 13,390 psi (92 MPa) 15,910 psi (110 MPa)
Tensile elongation, ASTM D638 3.0% n/a
Heat Distortion Temperature (HDT) (66 psi)
(264 psi)
n/a
n/a
278 F (137 C)
263 F (128 C)
Coefficient of Thermal Expansion (CTE) – TMA 30 ppm/ F (54 ppm/ C) n/a
Notched Impact strength, ASTM D256 7.0 in-lbf/in n/a
Cured 24 hours at 77 F (25 C) + 2 hours at 150 F (66 C) + 2 hours at 200 F (93 C) + 2 hours at 250 F (121 C) + 3 hours at 300 F
(149 C).
by | Sep 27, 2025
SikaBiresin CR
101
1 /
2
PRODUCT DATA SHEET
SikaBiresin CR101
Version 01.01 (08 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin CR101 (Formerly EL-335)
Toughened Epoxy Laminating System with High Impact Resistance
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin CR101 is a high-performance,
toughened laminating system developed for
intermediate temperature laminating
applications up to approximately 225 F
(107 C). SikaBiresin CR101 composites exhibit
increased impact resistance in the fabrication
of parts which will be used in a intermediate
heat temperature environment where
stability and performance are required.
SikaBiresin CR101 is availble with a choice of
two hardener options with different pot lifes
for process flexibility.
PRODUCT BENEFITS
– For applications up to approximately 225 F
(107 C)
– High impact resistance and toughness
– Two hardener choices (fast and slow)
– Excellent cloth wet -out
– Good elongation
– Increased hardness at elevated
temperatures
– Excellent dimensional stability
– Good mechanical shock properties
AREAS OF APPLICATION
SikaBiresin CR101 is used for
prototypes, patterns, master models,
tough composites parts, trim, holding
and checking fixtures, intermediate
temperature use splash molds, and
potting bushings. SikaBiresin CR101 c an be
used for laminating with graphite, EL-Glass,
S-Glass and Kevlar fabrics.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin CR101 (A)
Resin
SikaBiresin CH101-2 (B)
Hardener
SikaBiresin CH101-3 (B)
Hardener
Composition Epoxy Amine Amine
Mix ratio by weight 100 20 13
Aspect Clear liquid Clear liquid Clear liquid
Color (mixed) n/a Light amber Light amber
Viscosity Brookfield (mixed) n/a 1,500 cps 2,500 cps
Density at 77 F (25 C) (mixed) n/a 14.18 lbs./gal 9.34 lbs./gal
Pot life (228g) at 77 F (25 C) n/a 40 – 60 Minutes 85 95 Minutes
SikaBiresin
CR
101
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikaindustry.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT FORM)
Cure schedule: 24 H ours at room temperature + 4 hours at 212 F (100 C)
PROCESSING
Alternative post-cure options can be used, if
needed, in processing. Contact Sika Corporation s
Industry Technical Services Department at
tsmh@us.sika.com for additional information and
advice.
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Shelf life of resin and hardeners is 24 months
when stored in original, unopened containers
between 65-77 F (15 – 25 C). Any opened can
must be tightly closed.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
703-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452
Properties, Test Method
Mixed with SikaBiresin CR101 (A) Resin
SikaBiresin CH101-2 (B)
Hardener
SikaBiresin CH101-3 (B)
Hardener
Shore D hardness, ASTM D2240 86 87
Compressive strength, ASTM D695 16,500 psi (114 MPa) 16,860 psi (116 MPa)
Tensile elongation, ASTM D638 4.0% 2.0%
Heat deflection temperature (66 psi), ASTM D648
(264 psi), ASTM D648
196 F (91 C)
185 F (85 C)
214 F (101 C)
201 F (94 C)
Coefficient of Thermal Expansion (CTE) 34 ppm/ F (61 ppm/ C) 34 ppm/ F (61 ppm/ C)
Impact strength (cast bar) 10.64 in-lbf/in 12.15 in-lbf/in
by | Sep 27, 2025
SikaBiresin CR
101
1 /
2
PRODUCT DATA SHEET
SikaBiresin CR101
Version 01.01 (08 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin CR101 (Formerly EL-335)
Toughened Epoxy Laminating System with High Impact Resistance
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin CR101 is a high-performance,
toughened laminating system developed for
intermediate temperature laminating
applications up to approximately 225 F
(107 C). SikaBiresin CR101 composites exhibit
increased impact resistance in the fabrication
of parts which will be used in a intermediate
heat temperature environment where
stability and performance are required.
SikaBiresin CR101 is availble with a choice of
two hardener options with different pot lifes
for process flexibility.
PRODUCT BENEFITS
– For applications up to approximately 225 F
(107 C)
– High impact resistance and toughness
– Two hardener choices (fast and slow)
– Excellent cloth wet -out
– Good elongation
– Increased hardness at elevated
temperatures
– Excellent dimensional stability
– Good mechanical shock properties
AREAS OF APPLICATION
SikaBiresin CR101 is used for
prototypes, patterns, master models,
tough composites parts, trim, holding
and checking fixtures, intermediate
temperature use splash molds, and
potting bushings. SikaBiresin CR101 c an be
used for laminating with graphite, EL-Glass,
S-Glass and Kevlar fabrics.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin CR101 (A)
Resin
SikaBiresin CH101-2 (B)
Hardener
SikaBiresin CH101-3 (B)
Hardener
Composition Epoxy Amine Amine
Mix ratio by weight 100 20 13
Aspect Clear liquid Clear liquid Clear liquid
Color (mixed) n/a Light amber Light amber
Viscosity Brookfield (mixed) n/a 1,500 cps 2,500 cps
Density at 77 F (25 C) (mixed) n/a 14.18 lbs./gal 9.34 lbs./gal
Pot life (228g) at 77 F (25 C) n/a 40 – 60 Minutes 85 95 Minutes
SikaBiresin
CR
101
2
/
2
Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikaindustry.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT FORM)
Cure schedule: 24 H ours at room temperature + 4 hours at 212 F (100 C)
PROCESSING
Alternative post-cure options can be used, if
needed, in processing. Contact Sika Corporation s
Industry Technical Services Department at
tsmh@us.sika.com for additional information and
advice.
Normal health and safety precautions should be
observed when handling these products:
Ensure adequate ventilation
Wear gloves, glasses, and protective clothes
For further information, please consult the Safety
Data Sheets
STORAGE CONDITIONS
Shelf life of resin and hardeners is 24 months
when stored in original, unopened containers
between 65-77 F (15 – 25 C). Any opened can
must be tightly closed.
PACKAGING INFORMATION
Packaging information is available upon
request. Please contact your local Sika sales
representative.
FURTHER INFORMATION
Advice on specific applications will be given on
request. To contact Sika Corporation s Industry
Technical Services Department, send an email to
tsmh@us.sika.com. Copies of Safety Data
Sheets and Product Data Sheets are available
upon request.
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured data
may vary due to circumstances beyond our
control.
ENVIRONMENTAL, HEALTH AND SAFETY
For further information and advice regarding
transportation, handling, storage and disposal of
chemical products, user should refer to the
actual Safety Data Sheets containing physical,
environmental, toxicological and other safety
related data. User must read the current
actual Safety Data Sheets before using any
products. In case of an emergency, call
CHEMTREC at 1-800-424-9300, International
703-527-3887.
LEGAL DISCLAIMER
Prior to each use of any product of Sika Corporation,
its subsidiaries or affiliates ( SIKA ), the user must
always read and follow the warnings and
instructions on the product s most current product
label, Product Data Sheet and Safety Data Sheet
which are available at usa.sika.com or by contacting
SIKA s Technical Service Department via email at
tsmh@us.sika.com. Nothing contained in any SIKA
literature or materials relieves the user of the
obligation to read and follow the warnings and
instructions for each SIKA product as set forth in the
current product label, Product Data Sheet and
Safety Data Sheet prior to use of the SIKA product.
SIKA warrants this product for one year from date
of installation to be free from manufacturing
defects and to meet the technical properties on the
current Product Data Sheet if used as directed
within the product s shelf life. User determines
suitability of product for intended use and assumes
all risks. User s and/or buyer s sole remedy shall be
limited to the purchase price or replacement of this
product exclusive of any labor costs. NO OTHER
WARRANTIES EXPRESS OR IMPLIED SHALL APPLY
INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE
UNDER ANY LEGAL THEORY FOR SPECIAL OR
CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE
RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A
MANNER TO INFRINGE ON ANY PATENT OR ANY
OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY
OTHERS. Sale of SIKA products are subject to the
Terms and Conditions of Sale which are available at
https://usa.sika.com/en/group/SikaCorp/termsand
conditions.html or by calling +1 800-933-7452
Properties, Test Method
Mixed with SikaBiresin CR101 (A) Resin
SikaBiresin CH101-2 (B)
Hardener
SikaBiresin CH101-3 (B)
Hardener
Shore D hardness, ASTM D2240 86 87
Compressive strength, ASTM D695 16,500 psi (114 MPa) 16,860 psi (116 MPa)
Tensile elongation, ASTM D638 4.0% 2.0%
Heat deflection temperature (66 psi), ASTM D648
(264 psi), ASTM D648
196 F (91 C)
185 F (85 C)
214 F (101 C)
201 F (94 C)
Coefficient of Thermal Expansion (CTE) 34 ppm/ F (61 ppm/ C) 34 ppm/ F (61 ppm/ C)
Impact strength (cast bar) 10.64 in-lbf/in 12.15 in-lbf/in
by | Sep 27, 2025
