Fluorosilicone rubber parts
Fluorosilicone is silicone rubber with fluorinated side groups. It keeps most of silicone’s temperature range and adds resistance to fuels, oils and many solvents, which plain silicone lacks.
Like silicone, it has modest tear and abrasion strength, so it is used mostly for static seals.
At a glance
| Property | Fluorosilicone |
|---|---|
| Also called | FVMQ |
| Known for | Fuel and oil resistance with silicone range |
| Typical service temperature | -65 °F to +350 °F (-54 °C to +177 °C) |
| Common ASTM D2000 type and class | FK |
Typical values for general-purpose grades. The compound, the hardness and the service conditions decide what a part can take, so we confirm the compound with your quote. For what the type and class letters mean, see ASTM D2000 callouts.
Resistance profile
Generally good with
- Jet fuel, gasoline and oils
- Heat and cold
- Ozone and weathering
Usually a poor choice for
- Ketones
- Brake fluids
- Tearing, abrasion and dynamic rubbing
Where fluorosilicone is used
- Fuel system seals
- Static seals that see fuel or oil across a wide temperature range
How we make fluorosilicone parts
We work in fluorosilicone with these processes, all under one roof in Canonsburg, Pennsylvania:
Catalog parts you can request in fluorosilicone
Every catalog part is quoted in the material and durometer you name when you add it to your quote.
Quote a part in fluorosilicone
Send us a drawing, a sample part or a rough sketch. We will review it, recommend the right material and process, and give you a firm ship date with your quote.