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Home Materials Library PEI (Ultem)

PEI (Ultem)

  • Alternative Designations: PolyEtherImide
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Description:

PEI (Ultem) is a thermoplastic polyimide. With a strong environmental resistance, this material is highly stiff and stable. It is rigid and retains its strength at high temperatures. It is resistant to heat and creep and has excellent electrical properties. It is flame retardant. It is typically used in engine components, temperature sensors, electronics and medical devices.

 

 

 

 

Material Properties

Processes:

Special properties

  • Flame retardancy
PropertyValue, metricValue, ImperialType
Density1.28 g/cm31.28 g/cm3-
Elongation at Break80%80%-
Hardness165165Shore D
Ultimate Tensile Strength113.7 MPa16.5 ksi-
  • Injection moulding SPI surface finishes Injection moulding SPI surface finishes
    Injection Moulding SPI Finishes Injection Moulding SPI Finishes

    SPI

    SPI finishes are a set of standard mould finishes with different polished textures for enhanced properties.

    Notes:

    A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3

    Final result:

    • Heavily polished, to semi-gloss to fine and coarse matte depending on the selection
  • Injection moulding VDI surface finishes Injection moulding VDI surface finishes
    Injection moulding VDI surface finishes Injection moulding VDI surface finishes

    VDI

    VDI is an international standard for mould texturing of matte surfaces. It is mainly processed by Electrical Discharge Machining (EDM) when mould machining.

    Notes:

    VDI12, VDI15, VDI18,VDI21, VDI 24, VDI27, VDI30, VDI33, VDI36, VDI39, VDI42, VDI45

    Final result:

    • Fine-to-coarse grain depending on the selection
  • Custom finish icon

    Custom Finishing

    If you select a custom finish in the Instant Quoting Engine it will require manual review. Manual quoting usually takes 1-2 business days.

    Notes:

    Submitting for manual review with a custom request does not guarantee a quote.