PTFE also called and well–known as Teflon® (DuPont), is a thermoplastic with milky-white colour which is feels waxy.
It can be used in highest service temperature areas from -270°C up to +270°C and is also suitable for the usage in microwave ovens. The surface is non-adhesive and the gliding properties are better than these of FEP and PFA:
Because of its special raw material properties it takes an important position in comparison to other thermoplastics.
More information about PTFE film.