PTFE tape is used to fill cracks and plug leaks. Usually used for valve leakage and so on.
PTFE tape, a white opaque film-like PTFE product, is a common auxiliary in plumbing installation. The chemical name is polytetrafluoroethylene and the commercial name is polytetrafluoroethylene-raw material belt. Raw tape is the common name of PTFE-raw material belt. Raw rubber tape is mainly used at the joint of cold and hot water supply pipe fittings to enhance the sealing of the joint, prevent the leakage of the joint, and increase the anti-leakage function of the joint. At present, raw rubber tape is used in heating, ventilation and water supply and drainage.