What is
FKM?

superior rubber type

FKM rubber is very expensive due to its unique raw materials and exceptional properties. It is used in aerospace applications, the chemical industry and on oil platforms. But what exactly makes this type of rubber so special?

FKM, also known as fluoroelastomer, is a type of rubber marketed under the widely recognised trademark Viton, registered by DuPont. This rubber grade is used in a wide range of industrial applications due to its superior properties and raw materials compared to other types of rubber. Its structure includes hexafluoropropylene and vinylidene fluoride, among other constituents.

withstands temperatures up to 250°C

PROPERTIES OF FKM RUBBER

Chemicals and high temperatures pose no challenge for FKM. It is resistant to hydrocarbons, acids and bases, maintaining its mechanical properties even at temperatures up to 250°C. From aerospace to the chemical and petrochemical industries, FKM rubber is the ideal choice!

Compared to other types of rubber, FKM is significantly heavier due to its high density. This makes it easy to recognise. It is even used in luxury watch straps—not for its chemical properties but for its hefty, robust feel.

Thanks to its chemical resistance, this type of rubber handles aggressive oils well and is remarkably wear-resistant. Its temperature range is particularly impressive; this rubber is capable of withstanding temperatures from -20 to +250°C. Uniquely, it can even endure compression under such extreme temperatures.

Like any type of rubber, FKM has its limitations—it is not resistant to ethers, ketones or bases.