has a coefficient of friction of PTFE is 0.1 or less, which is the lowest of any known solid material. It is used as a non-stick coating for pans and other cookware. PTFE is very non-reactive, and so is often used in containers and pipework for reactive chemicals. Melting point is 327°C, but its properties degrade above 260°C.

Other polymers with similar composition are known with the Teflon name: fluorinated ethylene-propylene (FEP) and perfluoroalkoxy polymer resin (PFA). They retain the useful properties of PTFE of low friction and non-reactivity, but are more easily formable. FEP is softer than PTFE and melts at 260°C; it is highly transparent and resistant to sunlight.

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Teflon is polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene.