PEI (polyetherimide) is an amorphous, non-crystalline high-performance polymer, which has high strength, high rigidity, wear resistance and dimensional stability at high temperature. It has excellent mechanical strength, electrical insulation and radiation resistance. PEI has inherent flame retardancy and low smoke without adding any additives. Its Tg is 215 ℃, and can be used for a long time at 160~180 ℃. The maximum allowable intermittent service temperature is 200 ℃.

Combines good chemical resistance with a high heat deflection temperature of 205℃ (ISO 75), making it a good fit for food service applications. This resin is also inherently flame retardant for use in electronic components and testing devices

Polyetherimide (PEI) is a non-crystalline high-performance polymer, transparent amber color, with excellent heat resistance, good chemical resistance, excellent fire resistance and excellent dimensional stability .