Fluorosilicone Rubber
COMMON NAME: Fluorosilicone
General Characteristics
- ASTM D-2000 Classification: FK
- Military: MIL-R-25988, Amend. 2
- Chemical Definition: Fluorosilicone
- Durometer Range (Shore A): 50-80
- Tensile Range (P.S.I): 500-800
- Elongation (Max %): 300
- Compression Set: Good
- Resilience-Rebound: Excellent
- Abrasion Resistance: Poor
- Solvent Resistance: Fair
- Oil Resistance: Good
- Low Temperature Usage (F°): -80°
- High Temperature Usage (F°): 300°
- Aging Weather-Sunlight: Excellent
- Adhesion to Metals: Poor
Fluorosilicone is considerably more expensive than
silicone, however it is developed for special applications
where general resistance to oxidizing chemicals,
aromatic and chlorinated solvent bases is required.
Fluorosilicone is not recommended and is generally
attacked when exposed to brake fluids, hydrazine and
ketones. Fluorosilicone should not be confused with
silicone in regard to high heat resistance.
