PolyTetraFluoroEthylene (PTFE) is a man-made polymer that has particular applications in manufactured products because of the unique chemical properties of PTFE. PTFE is commonly known as Teflon (PTFE/Teflon was originally developed by the Du Pont Corporation). Key properties are: chemically inert, low coefficient of friction, non-adhesive, excellent electrical insulator and wide temperature range -110F (-73C) to +500F (+260C)
Expanded PTFE (ePTFE) sheet comprises a highly fibrillated and porous micro-structure that contributes to excellent sealing capability. ePTFE sheet’s compressibility, creep resistance and sealing ability are superior to other PTFE-based gaskets. These properties combined with excellent chemical resistance and thermal stability make ePTFE sheet one of the most versatile gasket materials today. Temperature range -400F (-240C) to 500F (+260C).