Polyimide FEP film is Polyimide film(BOPI) coated with FEP(F46) resin on one side(FH) or double sides(FHF) through the sintering process at high temperature, which combines the excellent properties of Polyimide film and FEP(F46) resin, high& low temp resistant, radiation resistant, excellent electrical properties, superior dimensional stability and heat sealable properties. It performs successfully in the wide range of temperature as low as -112F(-80c) and as high as +500F(+260c), widely used for insulation in motor, electrical apparatus and wrapping of cable and magnet wire. It can be melt and formed soon as desired at defined temperature.