SikaBiresin® CR87
SikaBiresin® CR87 is a bio-sourced epoxy resin system suitable for the production of high performance fiber reinforced composite structures with thermal properties up to 87 °C by vacuum infusion process.
- 38 % bio-based carbon content (resin)
- Wide range of processing times
- Fast infusion of fabrics and non-wovens
PRODUCT BENEFITS
- 38 % bio-based carbon content (resin)
- Wide range of processing times
- Fast infusion of fabrics and non-wovens
Areas of Application
SikaBiresin® CR87 is especially suited to infusion and injection processes due to its low viscosity. It is designed for general industrial production and enables composite solutions with increased sustainability.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® CR87 (A)
| Pail | 10 kg |
| Drum | 200 kg |
| IBC | 1000 kg |
SikaBiresin® CH87-2 (B)
| Can | 2.8 kg |
| Drum | 180 kg |
SikaBiresin® CH87-6 (B)
| Can | 2.8 kg |
| Drum | 180 kg |
SikaBiresin® CH87-10 (B)
| Can | 2.8 kg |
| Drum | 180 kg |
Product Details
| Properties |
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| Chemical base |
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| Color |
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| Density | liquid cured |
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| Mixing ratio | by weight by volume |
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| Viscosity (CQP029-4) |
mixed |
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| Application temperature | 18 - 25 °C | |||||
| Pot life (CQP021-3 / Gel Timer TECAM) |
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| Curing conditions | 8 hours |
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| Tensile strength (CQP036-2 / ISO 527) |
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| Tensile modulus (CQP036-2 / ISO 527) |
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| Tensile elongation (CQP036-2 / ISO 527) |
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| Flexural strength (CQP027-2 / ISO 178) |
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| Flexural modulus (CQP027-2 / ISO 178) |
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| Compressive strength (CQP028-5 / ISO 604) |
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| Shore D hardness (CQP023-1 / ISO 868) |
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| Impact resistance (CQP038-2 / ISO 179) |
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| Glass transition temperature (CQP301-5 / ISO 11357) |
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| Heat deflection temperature (CQP030-1 / ISO 75A) |
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| Heat deflection temperature (CQP030-1 / ISO 75B) |
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| Heat deflection temperature (CQP030-1 / ISO 75C) |
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| Shelf life |
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| CQP = Corporate Quality Procedure |
Application
Application
The resin system is optimized for processing temperatures between 18 °C – 25 °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.
Information regarding reactivity and viscosity increase of different combinations of SikaBiresin® CR87 are shown in the diagrams below.
Diagram 1: Reactivity at 23 °C in a 100 ml insulated cup
Diagram 2: Viscosity increase at 25 °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® CR87 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.