Viton

Typical Trade Names:

• Fluorel - Minnesota Mining & Mfg. Co.
• Kalrez (high temp) - E.I. duPont de Nemours Company
• Kel-F - 3M (formerly Kellogg)
• Viton - E.I. duPont de Nemours Company

Fluorocarbon elastomers were first introduced in the mid 1950's. Since then they have grown to major importance in the seal industry. Due to wide spectrum chemical compatibility and temperature range, fluorocarbon rubber is the most significant single elastomer development in recent history.

Its working temperature range is considered to be from -20 degrees to +400 degrees F (-29 degrees to +204 degrees C) but it will take temperatures up to 600 degrees F (316 degrees C) for short periods of time. It has been known to seal at -65 degrees F (-54 degrees C) in some static applications. Newer developments have tremendously improved the compression set characteristics of this very useful material.

Compounds made from fluorocarbon elastomers should be considered for use in aircraft, automotive and other mechanical devices requiring maximum resistance to deterioration by test and functional fluids.

Viton is recommended for:

• Petroleum oils
• Di-ester base lubricants (MIL-L-7808, MIL-L-6085)
• Silicate ester base lubricants (MLO 8200, MLO 8515, OS-45)
• Silicone fluids and greases
• Halogenated hydrocarbons (carbon tetrachloride, trichloroethylene)
• Selected phosphate ester fluids
• Acids

Viton is not recommended for:

• Ketones (MEK, acetone)
• Skydrol 500
• Amines (UDMH), anhydrous ammonia
• Low molecular weight esters and ethers
• Hot hydrofluoric or chlorosulfonic acids