AGC produces two kinds of high-performance ethylene tetrafluoroethylene (ETFE) films that are lighter and more durable than glass: Fluon®️ ETFE is used in architectural applications around the world because it exhibits exceptional transparency, antifouling properties and durability. F-CLEAN™️ ETFE film is used as a greenhouse covering because it lets in more light than glass, PE film, polycarbonate and PMMA sheets.