... electricity insulativity radiation 3,etching resistance 4,corona resistance 5,therma Corona Resistance Polyimide FilmIn addition to the very ... , major insulation, external insulation of big coil and corona resistance protective layer of large tractive motor, conversion motor ... wind driven generator, special motor etc.I TypeTY6051-CR corona resistance polyimide filmTY6251-FCR (single side, double sides), ...