Kapton® offers an excellent balance of electrical, thermal, mechanical, physical, and chemical properties over a wide range of temperatures. It is this combination of useful properties at temperature extremes that makes it a unique industrial material.

DuPont™ Kapton® is a polyimide film when combined with Thermal Circuits’ etched foil elements, produces very thin flexible, customizable heaters and heater assemblies.  Since Kapton® maintains its excellent physical, electrical, and mechanical properties over extreme temperatures; it is considered a unique industrial material. Kapton®/Polyimide is compatible with foil element alloys as inconel, nickel, copper, Balco, and many stainless steels.  These dielectric insulators have low outgassing properties, are resistant to a myriad of chemistries, and can be produced with sundry internal adhesive systems that permit higher watt densities and operating temperatures. Kapton® contains properties that make it ideal for many applications in a wide range of industries. It is reliable, rugged and has a very high dielectric constant.

How Kapton® is Synthesized

Kapton® is synthesized by polymerizing an aromatic dianhydride and an aromatic diamine. It has excellent chemical resistance since there are no known organic solvents for the film. Kapton® does not melt or burn as it has the highest UL-94 flammability rating: V-0. The outstanding properties of Kapton® permit it to be used at both high and low temperature extremes where other organic polymeric materials would not be functional. Adhesives are available for bonding Kapton® to itself, metals, and other materials.