Teflon tape, also known as plumber’s tape or thread seal tape, is a thin, white, non-adhesive tape made from poly tetra fluoro ethylene (PTFE), commonly known as Teflon. It is widely used in plumbing applications to create a watertight seal between threaded pipe fittings. Teflon tape is wrapped around the threads of a pipe or fitting before it is screwed together with another piece. The tape fills in any gaps or irregularities in the threads, preventing leaks and ensuring a secure connection. It is known for its high chemical resistance, temperature tolerance, and durability, making it an essential tool for plumber.