High Heat Resistance, Thermoplastic Polyimide

A Super High-Grade Engineering Plastic sustaining the state-of-the-art of the 21st Century.

  • Long term heat resistance
  • Heat Shock Resistance
  • Dimensional Stability
  • Wear-Friction Properties
  • Cleaness
  • Plasma Resistance
  • Metal Replacement


In recent years, AURUM® is a polyimide resin attracting increasing attention because of its outstanding properties. Its application range is expanding into various area, going beyond the boundary of the electronics industry. AURUM® is an entirely new type of thermoplastic polyimide resin developed by Mitsui Chemicals on its own, making full use of its technology. An expansion of the application range of AURUM® has been made possible because of its thermoplasticity suitable for injection molding and extrusion as well as its unparalleled high heat resistance and mechanical and electrical properties


Super-high heat resistance

Usable at up to 240°C (glass transition temparature:250°C)

Satisfactory sliding properties

A low, stable coefficient of friction and low friction wear

Outstanding dimensional stability

Stable coefficient of expansion and satisfactory creep characteristics

Exceptionally clean properties

Trace amounts of outgas and metallic impurities


Precision machinery, industrial machinery parts, electrical and electronic parts, automotive and transport equipment parts, special insulation, metal alternative, film, fiber, matrix composite materials, HDD parts and semiconductor manufacturing equipment, copier machine parts