FEP / PFA Encapsulated O-Rings

A seamless FEP or PFA jacket over a resilient silicone or FKM core — the chemical and temperature resistance of a fluoropolymer with the spring-back of rubber. A cost-efficient alternative to FFKM for aggressive media.

• ✓Seamless FEP/PFA encapsulation — no weld line to fail
• ✓Elastomer core keeps sealing force where solid PTFE would cold-flow
• ✓Low-friction jacket reduces wear on mating hardware; very low gas permeability
• ✓USA and metric cross-sections; nearly unlimited diameters
• ✓FEP resists virtually all chemicals (except alkaline metals, fluorine and some halogenated compounds at high temperature)