The FHF, FH are a kind of dry adhesive tape made by dipping and coating F-46(Teflon FEP) emulsified solution on polyimide casting film then sintering with high temperature. Polyimide F46 compound film have synthesized the characteristic of polyimide film and fluorine plastics, and endure the different temperature and the electronic radiation. It can be melted and shaped at 300 - 350c. Its insulation heat-resisting grade is level H, and it can be used in the temperature -269C~+260C for a long period. It's extensively suitable for insulation layer of wire, cable and electromagnetic line as well the insulation for various H~C grade motors.