Expanded PTFE Gaskets and Seal materials consist of virgin PTFE with multidirectional fibrous and/or porous structure, which the extruded PTFE consists of. A special manufacturing process provides the material with special chemical and physical properties. This can be of advantage in wide range of the applications.BIK-30203 soft flexible PTFE gasket and sealing material easily conforms to sealing surface imperfections with less torque than conventional materials. Expanded PTFE resists cold flow and creep while offering the widest range of sealibility, chemical resistance, and temperature service of any material offered.