Fluorosilicone O-Ring (FMVQ) Material Description


Fluorosilicone (FVMQ) is like side chains of silicone rubber, bonding trifluoropropyl, methyl and vinyl. The mechanical and physical properties are similar to VMQ. However, FVMQ offers improved fuel and mineral oil resistance, but less hot air resistance than standard VMQ.

Fluorosilicone o-rings are preferable for use with fuels, mineral oils, Benzene, Toluene, and conditions requiring weather resistance. Fluorosilicone o-rings are not preferable for use with brake fluids, ketones, and Hydrazine.

Cure system: Peroxide-cured

Standard FVMQ compounds are metal peroxide-cured.

Fluorosilicone O-Ring Temperature Range:

Standard Low Temp: -60°C (-76°F)
Standard High Temp: 177°C (350°F)

SPEC SHEET: Fluorosilicone Rubber (FVMQ) 70 Durometer


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