Joint sealant gasket spool: 100 percent virgin PTFE joint sealant can instantly be formed in place to fit any shape, regardless of flange size or complexity It adheres readily, and forms a gasket when the ends are overlapped, so even sealing vertical flanges is a one-person job Extremely versatile and easy-to-install, Other products you may also interested: 1. ptfe sheet 2.ptfe gasket 3.eptfe tape 4.eptfe sheet 5.eptfe padding