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PEI Polyethermide


PEI plastic (polyetherimide) standard grade offers exceptional electrical, thermal & mechanical properties with fillers available such as glass fibers increasing tensile strength & dimensional stability. TECAPEI PEI plastic is suitable for environments requiring repetitive steam sterilisation & resistance from chlorine/caustic/acid chemicals. Wide service temperature range between -50°C to 170°C.

  • Excellent chemical & UV resistance, inherently flame retardant
  • High heat resistance, strength & electrical insulation
  • Stable over a wide range of temperatures
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​​​8mm to 150mm OD​




1​0mm to 80mm Thick​



​Modified Grades


​Cut To Size

​​No - minimum order quantities apply​


​​Food, Medical, Aerospace Grades​

​TECAPEI PEI Natural grade is FDA certified for food contact. TECAPEI PEI Natural & TECAPEI PEI GF30 (glass filled) is FAR 25.853 approved for aerospace applications. TECAPEI PEI is widely used in electronics, automotive, mechanical, medical & vacuum technologies.

​Additives & Modifiers

TECAPEI PEI GF30 is available reinforced with 30% glass fibres which offers higher rigidity, increased mechanical strength & additionally providing dimensional stability. TECAPEI PEI GF30 is used for components subject to high static loads in constant high temperature applications.


​Typically TECAPEI PEI plastic is used in electrical, automotive, aerospace applications such as: circuit breaker housings, non-combustible connectors, jet engine components, aircraft & automotive components, coils & fuses, heat exchangers & medical components.

TECAPEI PEI Plastic Properties

Long Term Service Temp
Temperature -  Long Term Service Temp-50°C to +170°C
Moisture Absorption
Medium - Moisture Absorption
UV Stable
Yes - UV Stable
Compressive Strength
Medium - Compressive Strength
Impact Strength
Low - Impact Strength
Tensile Strength
High - Tensile Strength
Coefficient of Friction
Medium - Coefficient of Friction
Abrasion Resistance
Very Low - Abrasion Resistance
High - Cost

TECAPEI PEI Plastic Range

Product TypeIndustry UsageAvailable Products & Notes
TECAPEI PEI NaturalFood, Electronics, Medical, Aerospace, Automotive, Vacuum TechnologiesNatural Rod, & Sheet
Some items are manufactured & imported on request
TECAPEI PEI GF30 NaturalElectronics, Mechanical, Automotive, Vacuum Technologies30% Glass Filled Rod, & Sheet
Some items are manufactured & imported on request


Ensinger Plastics - Germany

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