Fluorosilicone, similar to silicone rubber, bonding trifluoropropyl, methyl and vinyl as side chains. Fluorosilicone’s Physical and mechanical properties are similar to the ones of standard VMQ. FVMQ however, offers increased resistance towards fuel and mineral oils. FVMQ’s hot air resistance is poorer than standard VMQ.

Actum Sweden AB has its own FVMQ compounds: F7004BU02, F3002BU

ApprovalAuthoritySvc. Temp.CompoundElastomerHardnessColor
UL-55~80°CF7004BU02FVMQ 70±5 Shore A Blue
UL1238UL-40~60°C F3002BUFVMQ30±5 Shore A Blue

Cure system:

Standard FVMQ compounds are peroxide cured.


Since FVMQ offers excellent low-temperature flexibility and good resistance to fuel and aromatic mineral oils it is often used together with jet and automotive fuels, most solvents and engine oil especially in aerospace industry.

General information

ASTM D 1418 Designation: FVMQ
ISO/DIN 1629 Designation: FVMQ
ASTM D2000 / SAE J 200 Codes: FK
Standard Color(s): Blue
Hardness Range: 40 to 85 Shore A
Relative Cost: High

Service Temperatures

Standard Low Temperature: -60°C / -76°F
Standard High Temperature: 177°C / 350°F
Special Compound Low Temperature: -60C / -76°F
Special Compound High Temperature: 232°C / 450°F

Performs well inDoes not perform well in
Brake fluids
Aromatic mineral oilsKetones
Benzene, tolueneHydrazine
Ozone and weather