When it comes to using PTFE tape with fuel oils such as oil, petrol, diesel etc. standard white PTFE tape can in most cases be safely used with systems that utilise and work with these fuels as the tape itself is able to deal with heat and pressure rather well and due to the fact that PTFE tape won’t react with any such substances it won’t degrade. Where Should PTFE Tape be Used? Robustly resistant to pressure, which makes it suitable for fuel injection systems and other high bar applications.

If you have ever done any plumbing work or worked on an existing water system in a home e.g. changed a tap chances are that at some point you will have come across some PTFE tape wrapped around a given joint and possibly wondered why it was there. Use plumber’s tape to seal male pipe fitting threads. Male pipe fittings are the pieces that screw into another piece, which is called a female pipe fitting. Always put plumber’s tape on the male threads before screwing them into the female threads. [1] X Research source Resistant to high arcs and performs well in high temperatures, making it ideal for use with capacitors, wire harnesses, and high-temperature coils.When wrapping PTFE tape around a thread each revolution or layer should over lap the last one by roughly a half to ensure a good seal. Clean all threads: The first task is to clean everything fully and remove any dust, debris or grime that may be in any of the threads. The presence of even the tiniest spec of dust can cause a leak. Using a clean, lint-free wrag dust off any debris from in and around the threads of both sections of the joint. Where any heavy soiling is present you may need to use a specialist cleaning or degreasing product. The best tool to use is a wire brush or if you have one, like we have used here, a brass wire brush. Grip the tape with your thumb and forefinger, then pull it sharply to break the end of the tape from the spool when you’re finished wrapping. It should break easily. Chemical inert, so it won’t react with other elements. That makes it ideal for applications where solvents, gases, or acids may be lurking.

In this DIY guide we take a look at PTFE tape and find out how exactly how to use it correctly. What is PTFE or Sealant Tape Wrap PTFE tape around thread: With your joint fully cleaned and dried, now start wrapping PTFE tape. Starting at the open end of the joint come in 1 – 2 threads (as any stray debris from the tape won’t then spill into the open end of the joint) unwrap the PTFE tape from feel and flatten it out, removing any creases and lay over the thread. Wrap the tape around the thread overlapping each layer of tape by a half until you reach the opposing end then snap the tape off and run the loose end down around the threads Pull the tape tight to break it and separate the roll from the tape on the pipe. Pinch the tape between the pipe threads and the roll tightly between your fingers. Pull it to stretch and tear the tape. Press any excess tape tightly onto the threads. [5] X Research source

Take the end of your plumber’s tape and place it on the second thread from the pipe’s end. Hold it there with your finger or thumb. The tape should sit flat over the threads and not bunch up. Extend it perpendicularly to the length of the pipe. One other point to note is that you should always use PTFE tape on the actual threaded male section of the joint and no where else, this is where it is designed to go.