Bertech High Temperature Polyimide Discs are made from 1 Mil thick polyimide film with silicone adhesive. These discs are reliable and durable with a unique combination of electrical, thermal, chemical, and mechanical properties. They can withstand extreme temperatures, vibration, and other demanding environments. Their thermal performance ranges from 100° F to 500° F. They are packaged in various sized diameters on a liner on a 3 inch core roll.