SIKABIRESIN CF234
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others

Main features
- 24-part hardener weight ratio
- 0.43 g/cm3 Part B density
- Honeycomb edge-fill system hardener
Product Description
SikaBiresin CF234 Part B Hardener is the green amine paste component for the two-part CF230/CF234 epoxy edge-filling system. It is mixed with CF230 Part A at 24 parts hardener to 100 parts resin by weight. Part B has a typical specific gravity of 0.43 at 25 deg C; the combined material has a typical 11-minute pot life at the same temperature. The system forms a lightweight, smooth paste for honeycomb edge filling, cell densification around inserts, and localized sandwich-panel repairs. Final mechanical, thermal, flame-test, shrinkage, and machinability data apply only after CF234 is combined and cured with the specified CF230 Part A resin.
Key features
- Controlled hardener ratio: Use 24 parts CF234 to 100 parts CF230 by weight
- Low-density Part B: The green amine paste has a typical specific gravity of 0.43 at 25 deg C
- Short mixed pot life: The 116 g CF230/CF234 mixture has an 11-minute pot life at 25 deg C
Applications
Edge filling of aluminum and other honeycomb sandwich structures; core-cell densification for insert anchoring; localized sandwich-panel repairs.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Part B properties are separated from processing values for the complete CF230/CF234 system.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Composition | Amine | CF234 Part B | |
| Aspect | Paste | As supplied | |
| Color | Green | CF234 Part B | |
| Specific gravity | 0.43 | g/cm3 | At 25 deg C |
| System mix ratio by weight | 100:24 | CF230 Part A:CF234 Part B | |
| Mixed-system pot life | 11 | minutes | 116 g mixture at 25 deg C |
| Shelf life | 12 | months | Original unopened container at 15-25 deg C |





















