A family of plastics which possess a backbone of carbon and fluorine, including Ethylene-Tetrafluoroethylene (ETFE), Fluorinated Ethylene-Propylene (FEP), Perfluoroalkoxy (PFA), Polytetrafluoroethylene (PTFE) (Teflon), and Polyvinylidene Fluoride (PVDF).
This is a general term for a plastic that is reinforced with cloth, mat, strands, or any other fiber form.