PTFE thread seal tape

PTFE thread seal tape is wrapped around the threads, lubricating the connection and allowing the two pieces to be screwed deeper together.

Thread seal tape (also known as PTFE tape, Teflon tape, or plumber’s tape) is a made of polytetrafluoroethylene (PTFE) film, commonly used in plumbing for sealing pipe threads. The tape is sold cut to specific widths and wound on a spool, making it easy to wind around pipe threads. Thread seal tape lubricates, allowing for a deeper sealing of the threads, and it helps prevent the threads from seizing when being unscrewed. The tape also works as a deformable filler and thread lubricant, helping to seal the joint without hardening or making it more difficult to tighten, and instead making it easier to tighten. It also protects the threads of both pieces from direct contact with each other and physical wear and helps seal and prevent leaks from the connection.

Typically the tape is wrapped in the same direction the male threads go for tightening and is commonly used commercially in applications including pressurized water systems, central heating systems, and air compression equipment.

PTFE thread seal tape has the following characteristics:
1.  Good sealing performance.
2.  High temperature resistance.
3.  Corrosion resistance.
4.  Good flexibility.

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