material notesPolyimide films provide excellent electrical, thermal, physical, and chemical properties over a wide temperature range in a lightweight package (136 sq ft/lb [28 m2/kg] for 1 mil) making them superior for electrical insulation applications.
CHEMFILM® polyimide films are produced in a world-class process that makes them dimensionally stable and inherently isotropic, meeting exacting tolerances, physically strong and electrical sound in widths up to 61.8 in. (1570 mm). These products meet all the requirements of ASTM D5213 (superseded MIL-P-46112B).
CHEMFILM® polyimide films are available in 1, 2, and 3 mil (25, 50, 75µm) at a maximum width of 61.8 in. (1570 mm) with continuous lengths from 1000 to 10,000 ft. (3000 m). The standard core is 3 in. (76.2 mm) nominal on cardboard. Width tolerance on slit materials will be held to 1/64 in. (0.4 mm) up to the max width of 61.8" (1570 mm).