Polyetherimide (PEI) is an amorphous thermoplastic with high mechanical strength and rigidity. Due to its characteristics, PEI is very similar to the polyarylsulphones. This material has a remarkably high creep resistance over a wide temperature range. Furthermore, PEI has a high permanent operating temperature. The very good resistance to hydrolysis together with its dimensional stability round off the portfolio of properties. Due to its amorphous molecular structure, PEI is transparent and golden yellow in colour.
— high permanent operating temperature (170°C)
— high mechanical strength
— high rigidity
— high creep resistance over a wide temperature range
— high dimensional stability
— very good resistance to hydrolysis (suitable for repetitive steam sterilization)
— good electrical insulation
— good radiation resistance
Product information
Abbreviation: PEI
Designation: Polyetherimide
Type of polymer: Thermoplastic
Colour: Amber transparent

Technical data sheet
Display of physical, mechanical, electrical and thermal properties of the engineering plastic MarbarPEI.

Material safety data sheet
Listing of safety relevant information about the engineering plastic MarbarPEI.


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