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).