Supplied and engineered by Qnity, Kapton® polyimide film has defined the performance benchmark for high-reliability polyimide insulation for more than 60 years. When aerospace equipment, electric vehicles, and advanced electronics demand exceptional dielectric integrity, thermal stability, and long-term performance, engineers specify Kapton® polyimide film with confidence.
Why engineers choose Kapton® polyimide film
Kapton® polyimide film delivers stable mechanical and electrical performance in conditions that exceed the limits of conventional polymer films. From multilayer insulation (MLI) blankets for satellites and spacecraft to dielectric substrates for flexible and rigid flex printed circuits to electrical insulation and thermal barriers in industrial systems, Kapton® polyimide film is widely specified in mission-critical systems where performance margins are tight, and material failure carries high consequences.
With an operating temperature range of –269 °C to 400 °C and dielectric strength of more than 7,000 V/mil (depending on grade), Kapton® polyimide film is built to perform in high-stakes applications. Available as thin as 4 µm and with thermal conductivity up to ~0.7 W/m·K, engineers have flexibility when incorporating Kapton® polyimide film into their designs.
A platform of polyimide film solutions
Qnity supplies a broad portfolio of Kapton® polyimide film configurations engineered at the film level to deliver application-specific electrical, thermal, mechanical, and optical performance. This approach allows engineers to fine-tune system behavior without redesigning assemblies and move efficiently from concept through production. The Kapton® polyimide film portfolio includes:
Engineered confidence for high-reliability systems
With exceptional thermal endurance, dielectric performance, mechanical stability, resistance to chemicals, radiation, and moisture – and a wide breadth of engineered configurations – Kapton® polyimide film is a foundational material for applications where failure is not an option.
Maintains its unique combination of mechanical properties under the harshest of conditions.
Engineered with heat sealable fluoropolymer coatings on polyimide materials, this family of composite films excel in the aerospace and cable industries, adhering to rigorous quality and safety standards with ease.
This list of literature below is not specific to one product grade
With exceptional thermal endurance, dielectric performance, mechanical stability, and resistance to chemicals, radiation, and moisture, Kapton® polyimide film provides engineered confidence for high‑reliability systems and demanding applications.
Use our interactive tool to explore the full Kapton® polyimide film portfolio, narrow options by product specs, access data sheets, and identify the right solution for your design.
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