Corona Resistant (CR) Polyimide Film

CGS-7658 polyimide film was designed to withstand the damaging effects of “corona” which can cause ionization and eventual breakdown of an insulation material or system when the voltage stress reaches a critical level.


• Corona Resistant
• High Electrical Resistance
• High-Temperature Resistance
• Good Chemical Resistance
• Good Solvent Resistance


• Traction Motors
• Transformers
• Electrical Rotating Machines

Product NumberDescriptionTensile Strength psiElongation(%)Dielectric Strength
CGS-7658(1 mil)1 Mil Corona Resistant Polyimide Film24,000406000
CGS-7658(2 mil)2 Mil Corona Resistant Polyimide Film24,000405000