A specialty gasket created to create a tight seal between flanges in pipe systems is the PTFE lap seal. It is constructed of high-quality PTFE (polytetrafluoroethylene), a substance that excels at high temperatures & chemical resistance. Even under high pressure, the tongue-and-groove shape of the lap seal design offers a reliable seal. When there are strong chemicals present, the PTFE lap seal is frequently employed in chemical processing facilities, pharmaceuticals, & food and beverage applications.