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 (polyetheretherketone) PEEK. Our plastics are manufactured under high quality standards in our factory in Russia. Buy PEI plastic by contacting us.


  • 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


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

  • Tensile strength: 48 (142) MPa

  • Sliding speed: 200 m/min

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

  • Resistance to UV radiation

  • 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


General chemical resistance of PLASTMASS™ PEI

  • PLASTMASS ™ PEI is 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

PLASTMASS™ PEI advantages compared with standard PEEK

  • With a toughness comparable to PEEK, PLASTMASS ™ PEI has a much higher final elongation

  • PV-value to 300%

  • All PLASTMASS™ PEI types have a better dimensional stability

  • PLASTMASS™ PEI only loses its rigidity at temperatures that are 50 °C above the maximum temperature load of PEEK

  • Higher wear resistance and impact toughness

PLASTMASS™ PEI advantages compared with bronze

  • Large, pre-producible stocks with PEI make it possible to minimize costs and time for material processing.

  • The low coefficient of friction and improved sliding properties increase the service life of the finished part and ensure less maintenance on machines

  • PLASTMASS™ PEI does not require shrinking due to its elastic properties

  • Our plastic can compensate for geometric errors due to its elasticity

  • It distributes the selective force influences perfectly across the entire finished part

  • Works without lubrication - a failure of the lubrication system does not lead to an emergency situation and a failure of the machine

  • Shock and vibration resistance

  • Low noise characteristics of the sliding parts

  • High positioning accuracy and smooth movement with low feed

  • Works in a dirty environment - PLASTMASS™ PEI has the ability to absorb abrasive foreign particles or impurities due to its elastic surface. As a result, no protruding particles remain on the sliding surface and do not cause abrasive wear.


  • Granules

  • Rods (diameter 6 -180 mm)

  • Pipe (outer diameter 30 - 380 mm)

  • Sheets, thickness: 6, 8, 10, 15, 20, 26, 32

    • Dimensions: 370 x1000 mm, 370 x 2000 mm

  • Sheets, thickness: 24 mm

    • Dimensions:120 x 1000 mm, 120 x 2000 mm

  • We manufacture finished parts based on samples and drawings


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 (499) 753-79-41

120 (8th floor),

Bratislavskaya Street 6, 109341 Moscow

+7 (968) 404-13-85

English Hotline

mon - fri 9 am - 6 pm

Beware of imitations!

All plastics are property of their owner, and are protected by the law of the Russian Federation "On Copyright and Related Rights". Using text and photos without written permission forbidden.

© LLC, TD Plastmass Group 2020

INN 7723909200

KPP 772301001