Fluorosilicone rubber is a modified version of silicone rubber that has been fluorinated to "cap off" the polymer chains to improve its chemical resistance. Fluorosilicone rubber is widely used in aerospace applications where fuels, coolants and oils may be present. These same fluids would cause standard silicone rubber and most other products to deteriorate. Fluorosilicone products also have very good low temperature and high temperature properties and are inherently UV and ozone resistant.

The fluorosilicone elastomer has improved thermal properties and oil resistance as compared to other forms of rubber or elastomer. Fluorosilicone rubber provides a much wider range of operational temperatures than fluorocarbon rubber. Some uses of fluorosilicone are in fuel systems at temperatures above 350°F or is other systems where the elastomer needs to be increased oil resistance. Due to relatively low tear strength, high friction and limited abrasion resistance of these materials, they are generally recommended for static applications only.

Fluorosilicone Rubber Physical & Mechanical Properties 
Hardness, Shore A -> 35–80
Tensile Strength Range -> 200–1500 PSI
Elongation (Range %) -> 100%–480%
Abrasion Resistance -> Poor
Adhesion to Metal -> Good
Adhesion to Rigid Materials -> Fair to Good
Compression Set -> Fair to Good
Flex Cracking Resistance -> Poor to Good
Impact Resistance -> Poor to Good
Resilience / Rebound -> Poor to Fair
Tear Resistance -> Poor to Good
Vibration Dampening -> Good
Fluorosilicone Rubber Thermal Properties
Low Temperature Range -> -85F to -70F
Minimum for Continuous Use (Static) -> -80F
Brittle Point -> - 85F
High Temperature Range -> 400F to 450F
Maximum for Continuous Use (Static) -> 450F
Fluorosilicone Rubber Applications
- Fluorosilicone O-rings
- Fluorosilicone Rubber Sheet
- Fluorosilicone Tubing
Changzhou Meridian can offer FVMQ (Fluorosilicone) rubber mouldings, seals, O-rings, gaskets, and etc.