PLASTMASS™ PEI plastic (Polyetherimide) is ideal for the production of sliding parts that work at higher temperatures, speeds and loads than PET. The use of PLASTMASS™ PEI reduces friction, wear and works in dry operation. It is a robust material that lowers operating costs and is also cheaper than PEEK. Our plastics are manufactured under high quality standards in our factory. 

If you have any technical questions about Polyetherimide plastics (polymers), please do not hesitate to contact us. Buy PEI plastic by sending us an e-mail or contacting us by phone.


  • Operation temperature
    -70 °C to +180 °C (+200 °C)

  • Tensile strength
    48 (142) MPa

  • Sliding speed
    200 m/min

  • Tensile fatigue strength at 20 °C
    10^6 stress cycles, 1 Hz = 33 MPa

  • Gamma-radiation
    Absorbed dose limited to 9000 kGy

  • Water absorption
    Max. 0,6 %
    Dimensional changes: 0,25 %

  • Fire behavior
    Oxygen index (LOI): 47 %
    Classification: V-0 (UL94), low flue gas emission

PEI Plastic Material | High Performance Plastic | Polyetherimide
PEI Plastic Material | High Performance Plastic | Polyetherimide


  • At temperatures up to 180 °C hard, stiff and tough

  • Good durability

  • High dimensional stability

  • High chemical resistance

  • High hydrolysis resistance

  • Very high UV radiation resistance

  • Excellent machinability



  • Diameter 6 -180 mm


  • Outer diameter 30 - 380 mm


  • Thickness: 6 - 32 mm

  • Dimensions: 120 x1000 mm - 370 x 2000 mm

Finished parts based on samples and drawings


What chemicals is PLASTMASS™ PEI (Polyetherimide) resistant to?

  • Resistant to alcohols, fuel for motor vehicles and aircraft, lubricants, cleaning

  • Resistant to weak acids and alkalis (PH-value <9),

  • Resistant to salt solutions, ether, hydrolysis of hot water and steam

  • Resistant to UV radiation

What advantages does PLASTMASS™ PEI (Polyetherimide) have over PEEK?

  • Has a much higher final elongation

  • PV-value to 300%

  • Has a better dimensional stability

  • Only loses its rigidity at temperatures that are 50 °C above the maximum temperature of PEEK

  • Higher wear resistance and impact toughness

What advantages does PLASTMASS™ PEI (Polyetherimide) have over Bronze?

  • Lower material costs

  • Low coefficient of friction

  • Improved sliding properties

  • Increased lifetime

  • Does not require shrinking due to its elastic properties

  • Compensates geometric errors due to its elasticity

  • It distributes selective forces perfectly across the entire finished part

  • Works without extern lubrication

  • Shock and vibration resistance

  • Low noise characteristics of the sliding parts

  • High positioning accuracy

  • Smooth movement with low feed

  • Works in a dirty environment - has the ability to absorb abrasive foreign particles or impurities due to its elastic surface


If you have any questions about our products or materials or you can not find the information you are looking for, contact us via phone or email. Our team is at your disposal at any time and with pleasure.

+7 (499) 951-79-41

+7 (968) 404-13-85

English Hotline

Monday - Friday
9 am - 6 pm

120 (8th floor), Bratislavskaya Street 6, 109341 Moscow

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