Is the Teflon gasket filled with fiberglass or graphite?
The molecular formula of E is similar to that of FFKM. FFKM is more resistant to temperature than PTFE, and has elasticity at 327 degrees!
PTFE generally used in static sealing, flange what, dynamic seal with FFKM, chemical resistance and PTFE, but with rubber elasticity
PTFE itself has the effect of self lubrication, you can ask the production of PTFE can add these, should not be able to! Vespel can add graphite to increase self lubrication
