ETFE

https://www.fluoropolymer-resin.com/products/etfe/

ETFE Material
Poly tetra fluoro ethylene, the full name of etfe ethylene tetrafluoroethylene, is one of the strongest fluor plastics with good mechanical properties, weather resistance, flame retardant, gas barrier properties and chemical resistance. In addition to the similar properties like other fluoropolymer material, the poly ethylene tetrafluoroethylene also shows good radiation resistance, strong adhesion with metal surface, and is lighter than other fluorinated materials.