Fluorocarbon ( FPM, FKM, Viton™ )
Fluorocarbon is a well-known high performance rubber, and especially it has excellent Resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic Fluids, aromatics and many organic solvents and chemicals.
Viton™ system gum like general type ( A-TYPE, 66% fluorine ), middle fluorine content type ( B- , GF – TYPE, 70% fluorine ), improving low temperatuore flexibility type ( GLT-GFLT ) and excellent resistance to more chemicals and solvents – Viton™ ETP Extreme.
®We also can supply excellent acid and alkali resistance parts made by AFLAS
Cure system Bisphenol cured vs. Peroxide-Cured
Standard FKM compounds are Bisphenol cured. FKM compounds with peroxide – cured possess better acid solution resistance than the bisphenol cured, and can replace litharge-cured applied in acid solution. In Some lubricants adding a few organic amide or amine, choosing peroxide curing system Viton™ will be better than bisphenol curing system.
Other Common Variations:
►FKM can also be submitted for approval to Underwriters Laboratories (UL) for use in applications as prescribed in UL157.
►FKM has excellent resistance to high temperature, oil, solvent, flame, chemical and weather, and it is usually applied in automotive, chemical processing, aerospace and many industrials.
►Viton™ GLT is broadly used in thermal range of -40°C to +250°C and it has outstanding resistance to aggressive HTS – type oils which are commonly used in aerospace industry.
►Viton™ ETP is usually applied in chemical industrial
►In some fuels adding several methanol, Viton™ F and B-type are more usable than A-type especially F -type. If it requires lower temperature, GFLT and GBLT will be available
►AFLAS® ( TFE/propylene polymer ) is better base and steam resistant than other general Vitons. It can be use in amine, amide and some bases.
Performs Well In…
►Fuel or blend with methanol or ethanol
►Diesel or blend with biodiesel
►Mineral oil and grease
►Silicone oil and grease
►Ozone, weather and very high temperature air
Doesn’t Perform Well In…
►Low molecular weight organic
acids ( formic and acetic acids )
►Low molecular weight esters and ethers
►Phosphate ester based hydraulic
®fluids – Skydrol