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Amatrium Materials AI
DuPont™ Kapton® 250FN029 Polyimide/FEP Composite Film
Categories: Polymer; Film; Thermoset; Polyimide, TS; Polyimide, Thermoset Film

Material Notes: 250 Gauge film structure consisting of a 50 µm (2 mil) base polyimide film with a 13 µm (0.5 mil) coating of Teflon® FEP on one side.

Kapton® Type HN film coated with Teflon® FEP fluoropolymer resin, imparts heat sealability, provides a moisture barrier, and enhances chemical resistance.

General Kapton® information: Kapton® is synthesized by polymerizing an aromatic dianhydride with an aromatic diamine. It has excellent chemical resistance; there are no known organic solvents for the film. It does not melt. It can be used at both high and low temperature extremes. Kapton® polyimide films can be used in a variety of electrical and electronic uses: wire and cable tapes, formed coil insulation, substrates for printed circuit boards, motor slot liners, magnet wire insulation, transformer and capacitor insulation, magnetic and pressure-sensitive tapes, and tubing.

Data provided by DuPont High Performance Films.

DuPont and Dow have completed their merger. This product line remained with DuPont.

Available Properties
  • Density, ASTM D542-90
  • Moisture Absorption at Equilibrium, 50% RH; 23°C (400=FN022)
  • Moisture Absorption at Equilibrium, 98% RH; 23°C
  • Water Vapor Transmission
  • Film Tensile Strength at Yield, MD, ASTM D882-91, 3% yield point; Orientation not specified
  • Film Tensile Strength at Yield, MD, ASTM D882-91, 3% yield point; Orientation not specified
  • Film Elongation at Break, MD, ASTM D882, Orientation not specified. Value at 200°C (390°F) is 110%
  • Secant Modulus, ASTM D882
  • Secant Modulus, ASTM D882
  • Impact Test, Impact strength per DuPont Pneumatic Impact Test
  • Tear Strength Test, ASTM D1004-90, N Graves (Initial) value
  • Elmendorf Tear Strength MD, ASTM D1922-89, Orientation not specified
  • Film Tensile Strength at Break, MD, ASTM D882, Orientation not specified
  • Electrical Resistivity
  • Dielectric Constant
  • Dielectric Strength
  • Dissipation Factor
  • Specific Heat Capacity, Value for Kapton® HN
  • Thermal Conductivity, Value for Kapton® HN
  • Flammability, UL94
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