FKM (Fluoro Carbon Rubber/FPM)

Characteristics
Fluorocarbon is a well-known high performance rubber. It has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. In addition to the standard Viton® compounds, we can supply parts made by Viton® like general type (A-TYPE, 66% fluorine), middle fluorine content type (B-, GBL-TYPE, 67~68.5% fluorine), high fluorine content type (F-, GF-TYPE,70% fluorine ), improving low temperature 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®.

Service Temperature
For general type, the service temperature is better limited to approximately from -26℃ (-15℃) to 232℃ (450℉) in static applications. Though for short working periods it will take even higher temperatures up to 275℃, service life will be shortened when the temperature is up to 232℃. In dynamic applications, the most suitable temperature is between -15℃ and 200℃. For GLT-type, the low temperature can be down below        -40℃.

Hardness
50 to 90 Shore A are available.

Color
Now black, brown, green, white, rust, yellow, blue are available, or any assigned color from customers.

Application
Because FKM has excellent resistance of high temperature, oil, solvent, flame, chemical and weather, it is usually applied in automotive, chemical processing, aerospace and many other areas. Due to wider thermal range of -45℃ to +275℃ and outstanding resistance to aggressive HTS-type oils of Viton GLT, it is a good choice for aerospace applications. Viton ETP is usually applied in the chemical industrial field. When fuels are added with methanol, Viton B- and F-TYPE, especially F-TYPE, are better than A-TYPE. When lubricants are added with organic amide or amine, peroxide curing system is better than bisphenol curing system.
FKM is not recommended for service in ketones, low molecular weight esters and nitrogen containing compounds.