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FKM (Viton)

The premium choice among common rubbers when heat and chemical resistance are non-negotiable.

Example: molded FKM (Viton)

What is it?

A premium fluorocarbon elastomer with the highest heat and chemical resistance among common rubbers.

Key behavior

Withstands aggressive chemicals and heat up to roughly 250°C — beyond what NBR or neoprene can handle.

Why choose it

Only when the application genuinely demands extreme chemical or heat resistance — the cost premium is justified by need, not convenience.

Applications

Aerospace engine seals, chemical plant valve seats, fuel injector seals.

Molding notes

Reserved for genuinely demanding conditions where standard rubbers would fail.

Properties

Density1.4-1.95 g/cm3
Typical HardnessShore 60A-90A
Typical StrengthService up to ~250C
Lead TimeConfirmed per RFQ
FinishingConfirmed per RFQ
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