ETFE is a copolymer of Ethylene and TetraFluoroEthylene better known as Tefzel®.

Although not fully fluorinated, ETFE coatings have excellent chemical resistance and can operate at 150°C/300°F. The resins within these coatings are the toughest within the fluoropolymer range and can be applied at film builds up to 1,000 micrometres.