PTFE envelope gaskets combine the superior chemical inertness of virgin PTFE with the resilience of core materials like EPDM, Viton, or CAF. They feature a U-shaped PTFE shell enclosing the insert, offering, as described on SSIP TFETeflon and PTFE Products, a solution to leakage, high-temperature (up to 500? ???? ), and harsh chemical applications. Commonly used in glass-lined reactors, piping, and chemical processing.
