Polyimide 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 These products meet all the requirements of ASTM D5213 (superseded MIL-P-46112B).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).
Splices may occur with slit width orders. The minimum length between splices will be 300 ft. (91 m). Material can also be coated to fit your application needs.
Exceeds UL 94 V-0 flammability
235oC (445oF) Relative Thermal Index (RTI)
Dimensionally stable (<0.08% shrink)
Isotropic (MD/TD Elongation 85%)
Scratch and abrasion resistant
Excellent solvent resistance (MEK, Benzene, and Toulene)
High dielectric strength
Resistance in corrosive environments