SikaBiresin® CR215

(formerly Epolam 2090 (A)/Epolam 2026 (B))

Composite resin system for hand lay-up and infusion process with Tg up to 202 °C

SikaBiresin® CR215 is an epoxy resin system suitable for the production of high performane fiber reinforced composite parts and molds with thermal properties up to 202 °C by vacuum infusion or hand lay-up process.  

  • Very high thermal resistance up to 202 °C
  • Low reactivity supports production of large structures and thick laminates
  • Blue color of hardener facilitates mixing process
 
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PRODUCT BENEFITS

  • Very high thermal resistance up to 202 °C
  • Low reactivity supports production of large structures and thick laminates
  • Blue color of hardener facilitates mixing process
 

Areas of Application

SikaBiresin® CR215 is especially suited for the production of large scale molds, which require high thermal resistance. The medium viscosity allows processing by vacuum infusion as well as hand lay-up process.
This product is suitable for experienced professional users only. Tests under actual processing conditions and with additional materials such as fibers and release agents must be performed to proof material compatibility.  

Packaging

   

SikaBiresin® CR215 (A)

Can

15.1 kg

SikaBiresin® CH122-9 (B)

Can

4 kg

SikaBiresin® CH122-9 (B) is used as well for other products and would therefore also be available in bigger packaging.

 

Product Details

Typical Product Data
Properties

Component A

SikaBiresin® CR215

Component B

SikaBiresin® CH122-9

Chemical base

Epoxy resin

Amine hardener

Color

Amber

Blue

Density

liquid

cured

1.16 kg/l

0.95 kg/l

1.14 kg/l

Mixing ratio

by weight

by volume

100 : 53

100 : 65

Viscosity (CQP029-4)

  

mixed

1600 mPa·s

100 mPa·s

650 mPa·s

Application temperature

20 ─ 30 °C

Pot life (CQP021-3 / Gel Timer TECAM)

850 minutes

Curing conditions

8 hours

200 °C

Tensile strength (CQP036-2 / ISO 527)

53 MPa

Tensile modulus (CQP036-2 / ISO 527)

3400 MPa

Tensile elongation (CQP036-2 / ISO 527)

1.7 %

Flexural strength (CQP027-2 / ISO 178)

90 MPa

Flexural modulus (CQP027-2 / ISO 178)

2900 MPa

Shore D hardness (CQP023-1 / ISO 868)

89

Glass transition temperature by DSC (CQP301-5 / ISO 11357)

202 °C

Shelf life

6 months

12 months

CQP = Corporate Quality Procedure

Application

Application Information

Application

The resin system is optimized for processing temperatures between 20 °C – 30 °C. Consider the change in processing parameters if the resin system is processed at different temperatures. The curing must be performed at temperature ≥ 18 °C.
Prior to application, check both components for crystallization. The crystallization process can be reversed by heating the product to 60 °C – 70 °C until the crystals are no longer visible.
Containers must be closed tightly immediately after each use to prevent moisture ingress.

Removal

Uncured SikaBiresin® CR215 can be removed from tools and equipment with Sika® Reinigungsmittel 5 or another suitable solvent. Once cured, the material can only be removed mechanically. Hands and exposed skin shall be washed immediately using industrial hand cleaner and water.
Do not use solvents on skin.

STORAGE CONDITIONS

All components must be stored between 15 °C – 30 °C.
Prior to use check the material for homogeneity and crystallization and make sure to temper it to processing temperature.