Kapton® HPP-ST Polyimide Film

Kapton® HPP-ST Polyimide Film is a specialty-grade polyimide film designed for demanding high-performance electronics and aerospace environments. It offers exceptional dimensional stability, low thermal expansion, and a reduced coefficient of moisture absorption compared to standard Kapton® variants. These features make it ideal for rigid-flex PCBs, satellite sensor encapsulation, and advanced instrumentation exposed to space radiation or extreme temperatures. Its optical clarity and uniform dielectric strength further benefit precision lithographic masking, ion-beam diagnostics, and cryo-vacuum electronics. The HPP-ST formulation maintains electrical insulation at elevated voltages and temperatures, outperforming conventional polymers in mission-critical control systems. With documented use in heavy-ion beam imaging and flame-retardant barrier technologies, this film is indispensable for compact, high-density electronic assemblies and optical systems operating in fluctuating or harsh environments.