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Kapton® FWR

DuPont™ Kapton® FWR films are polyimide-FEP fluoropolymer substrate materials that have a unique balance of electrical, thermal, and chemical resistance properties. Proper insulation design and application of these materials will provide a tough, high dielectric strength insulation with improved hydrolysis resistance compared to other commonly used polyimide containing materials.


  • Stirrer motors

Typical Properties of Kapton® FWR

Property 150FWR019 200FWR919
Dielectric Strength, kV/mil 5.4 5.6
Dielectric Constant 2.7 2.7
Dissipation Factor .0013 .0013
Volume Resistivity 2.3017 2.3017