The acid resistance, alkali resistance, and oxidation resistance of PTFE are very good, but the radiation resistance is not very good. Because of its corrosion resistance, PTFE even exceeds that of ceramics, and is usually used for product sealing. Therefore, the role of PTFE is increasing. It can be used in the iron and steel metallurgical industry.

Polytetrafluoroethylene uses carbon atoms as a skeleton, and fluorine atoms are arranged very uniformly around the carbon atoms. This atomic structure makes its chemical properties particularly stable. But not all things PTFE are not afraid of. If it is molten alkali metal and elemental fluorine, it can work at high temperatures.