Essentium Duratem


Duratem is a unique material made up of polyetherimide or PEI, polycarbonate or PC, and siloxane. Unlike other high-temperature materials on the market, Duratem has an impact strength of about 30 kilojoules per square meter, making it five times as strong as PEI 9085 and nine times as strong as PEKK. The base resin of Duratem meets UL 94V-0 flame testing standards at 1.6 millimeters and passes FAR 25.853 testing for flammability, heat release, smoke density, and toxicity. It also contains a non-halogenated flame retardant for health and safety.


  • High-temperature resistance
  • Low corrosivity
  • Dimensional stability
  • Thin-wall stability
  • Cold-temperature resistance up to negative 30 ˚C


  • Aerospace
  • Defense
  • Electrical
  • Energy Management
  • Material Handling
  • Rail Components

TDS: Essentium Duratem

SDS: Essentium Duratem