PEEK’s low outgassing properties and high-temperature resistance make it particularly well suited for use in ultra-high vacuum (UHV) systems. Under UHV conditions, it releases minimal gases and contaminants, making it one of the few polymers suitable for such demanding environments.

Aircrafts require components that are be light, but can still withstand heat, mechanical loads, vibration, chemicals and fire. PEEK is able to meet these requirements simultaneously.

RF systems require its components to have excellent electrical insulation, relatively low dielectric loss, and high thermal stability; all properties that PEEK pertains. Its ability to maintain dimensional and electrical performance under demanding temperatures and frequencies makes it particularly useful for insulating and supporting components in RF applications.

PEEK is particularly well suited to semiconductor manufacturing due to its high purity, excellent chemical resistance, low outgassing, and thermal stability. Its wear resistance and dimensional stability also make it ideal for precision components operating in highly controlled, contamination-sensitive environments