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Home Materials Library PBT

PBT

  • Alternative Designations: Polybutylene terephthalate / Arnite
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Description:

Polybutylene terephthalate (PBT) resin is known for its high mechanical strength, excellent dimensional stability, and high heat resistance. This material is widely used in the automotive industry for connectors and sensor housings, electrical and electronics for switches and circuit breakers, consumer goods like small appliance housings, industrial applications such as gears and bearings, and healthcare for medical device components.

 

Material Properties

Processes:

Special properties

  • Abrasion resistance
  • Chemical resistance
  • Heat resistance > 100℃
  • Smooth surface
  • Stiffness
  • UV resistance
PropertyValue, metricValue, Imperial
Density1.31 g/cm31.31 g/cm3
Tensile stress at strain33 MPa33 MPa
Hardness79D79D

Download datasheets

Download general datasheet Download PBT glass-filled (30%) datasheet
  • 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 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.