Thread seal tape, commonly Teflon tape, is a type of sealing tape used on threaded pipe joints to ensure a tight fit and to prevent leaks of liquids and gases. It is applied to the threads of a pipe to fill small spaces between the thread roots for a better seal. The tape is chemically resistant, and is used for water, air, gas, oils, and a wide variety of industrial fluids. PTFE T... https://www.ordinemengitech.com/ptfe-thread-seal-tape.php