SikaBiresin CR
163
FR
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PRODUCT DATA SHEET
SikaBiresin CR163
Version 01.01 (07 – 2023), en_US
PRODUCT DATA SHEET
SikaBiresin CR163 (Formerly EL-315)
Epoxy Laminating System with High Temperature Resistance
TYPICAL PHYSICAL PROPERTIES (FOR FURTHER VALUES SEE SAFETY DATA SHEET)
DESCRIPTION
SikaBiresin CR163 is a premium
performance, high temperature epoxy
laminating system developed to
withstand extreme heat conditions in
composite tooling applications, such
as autoclave, bonding jigs, oven cured
processing, or heat induction resin
transfer molding (RTM). SikaBiresin
CR163 is available with a choice of
three hardener options, each offering
different working times to support
required construction and bagging
times on various sized laminates.
SikaBiresin CR163 exhibits excellent
physical and mechanical properties,
resulting in a dimensionally stable and
durable composite mold or final part.
PRODUCT BENEFITS
– Good wet-out
– Three hardener choices for process
flexibility
– Post-curing options available
– Up to 450 F (223 C) Tg with SikaBiresin
CH163- 6 (B) hardener
– Excellent bond to all fabrics
– Excellent physical and mechanical
properties
QUALIFICATIONS
SikaBiresin CR163 (A) resin and SikaBiresin
CH163- 2 (B) hardener meet the following
qualifications:
– Boeing MMS-102
– Boeing M41-03-01 Code RHL
– IHL McDonnell Douglas C1-655, QPL Code
L-3
AREAS OF APPLICATION
SikaBiresin CR163 is suitable for manufacturing
composite tools or parts that are exposed to high
temperature conditions. Recommended processes
and applications include oven cured vacuum
bagged or autoclave molding applications, heated
RTM tools and parts, bonding jigs, and others.
Tests with actual materials and conditions
have to be performed to ensure satisfactory
performance.
Properties
SikaBiresin CR163 (A)
Resin
SikaBiresin CH163-1 (B)
Hardener
SikaBiresin CH163-2 (B)
Hardener
SikaBiresin CH163-6 (B)
Hardener
Composition Epoxy Amine Amine Amine
Mix ratio by weight 100 19 25 24
Aspect Clear liquid Liquid Liquid Liquid
Color (mixed) n/a Amber Black Amber
Viscosity Brookfield (mixed) n/a 2,000 – 3,000 cps 2,500 4,000 cps 4,000 5,000 cps
Density at 77 F (25 C) (mixed) n/a 9.09 lbs./gal 9.85 lbs./gal 9.51 lbs./gal
Work time at 77 F (25 C) n/a 50 – 60 minutes 50 – 75 minutes 180 210 minutes
SikaBiresin
CR163 FR
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Sika Corporation
30800 Stephenson Highway
Madison Heights, MI 48071
U.S.A.
Telephone: +1 248- 577-0020
Email: tsmh@us.sika.com
www.sikausa.com
TYPICAL MECHANICAL AND THERMAL PROPERTIES (NEAT OR COMPOSITE* FORM)
Cure schedule: Samples tested after 24 hours at 77 F (25 C) + 2 hours at 200 F (93 C) + 2 hours at 250 F (121 C) + 2 hours at 300 F (149 C) + 3
hours at 350 F (177 C)
* Denotes physical testing conducted on 6 ply 7500 Style E-Glass Laminate
PROCESSING
A prelimInary self-support cure schedule can
be used on a model, mold, or plug. Cure for 24
hours at 77 F (25 C) + 6 hours at 150 F (66 C).
You may attach support structure and de-
mold tool after this schedule is completed,
then apply post-cure. It is recommended to
install thermocouples to monitor the mold
temperature throughout the post cure
process, if possible.
POST-CURE HEATING AND COOLING RATES
Always allow tools made with Sika high
temperature epoxy 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 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 than 100 F (38 C). A lternative
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 CR163 (A) Resin
SikaBiresin CH163-1 (B)
Hardener
SikaBiresin CH163-2 (B)
Hardener
SikaBiresin CH163-6 (B)
Hardener
Shore D hardness, ASTM D2240 90 88 90
Glass Transition Temp. ( Tg), ASTM D4065 305 F (152 C) 331 F (166 C) 450 F (232 C)
*Tensile strength, ASTM D638 62,630 psi (432 MPa) 33,690 psi (232 MPa) 56,090 psi (525 MPa)
*Tensile modulus, ASTM D638 4,048,000 psi (27,910 MPa)
2,593,000 psi (17,878 MPa) 3,504,000 psi (24,159 MPa)
*Tensile elongation, ASTM D638 1.7% 1.8% n/a
*Flexural strength, ASTM D790 90,480 psi (624 MPa) 44,540 psi (307 MPa) 76,200 psi (525 MPa)
*Flexural modulus, ASTM D790 4,642,000 psi (32,005 MPa) 2,296,000 psi (15,830 MPa) 3,504,000 psi (24,159 MPa)
Notched izod Impact strength , ASTM D648 6.5 in-lbf/in 4.5 in-lbf/in 4.5 in-lbf/in