Kapton® FWN

Kapton® FWN magnet wire insulation

Kapton® FWN is ideal for demanding magnet wire applications and for difficult-to-wind motors.

Kapton® FWN is a multi-layer polyimide & fluoropolymer dispersion-coated film. The fluoropolymer coating functions as a heat-fusible layer for bonding to magnet wire conductors. It has superior scrape abrasion resistance and exhibits lower frictional properties than wire insulated with other commonly used polyimide materials.  Kapton® FWN is ideal for demanding magnet wire applications and for difficult-to-wind motors.

Applications:

  • Magnet wire
  • Traction motors used in rail, auto, and mining
  • Industrial motor insulation
  • Wind, hydro generators
TYPICAL PROPERTIES FOR DUPONT™ KAPTON® FWN POLYIMIDE FILM AT 23°C (73°F)
property 120fwn616b 150fwn019 test method
Thickness, mil 1.30 1.50 ASTM D374
Tensile Strength, kpsi (MPa) 30 (207) 27 (186) ASTM D882
Elongation, % 92 87 ASTM D882
Dielectric Strength, V/mil 6400 4700 ASTM D149

 

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