fluorinated ethylene-propylene copolymer

Fluorinated ethylene-propylene copolymer (FEP) is a fluoropolymer thermoplastic combining ethylene and propylene monomers with fluorine substitution, offering exceptional chemical resistance and non-stick properties. It is widely used in chemical processing, electrical insulation, non-stick coatings, and pharmaceutical manufacturing where exposure to aggressive solvents, oils, and corrosive media demands superior resistance compared to standard plastics. Engineers select FEP over unfluorinated polymers when non-reactivity, low friction, and thermal stability in demanding chemical environments are critical; it is also preferred over perfluorinated polymers like PTFE where slightly better processability and lower cost are acceptable trade-offs.