Teflon is a synthetic material. Being exact it’s a thermoplastic polymer, made mainly of carbon and fluorine. This material is incombustible, resistant to chemical products and heat, with a low friction rate and it’s nonstick. It’s a white solid at room temperature but its mechanical properties degrade above 260°C.It’s mainly used to nonstick surface of cooking utensils and laboratory apparatus, antifriction pieces of bearings and sheathings of high heats. It can also be used in all these applications: planes and rockets covering because of its resistance to temperature changes. In the medicine sector it’s used for prosthesis because it doesn’t react with other substances or muscles and it’s also used for lining of pipes, as you can see in the photo. More applications are paints and varnishes.
Here I attach a video showing how to apply a Teflon tape:
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