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Home Materials Library POM / Delrin acetal

POM / Delrin acetal

  • Alternative Designations: Acetal homopolymer
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Price range:
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Colors:

  • Black
  • White

Description:

POM, commonly known as Delrin or Acetal, is a low-friction engineering thermoplastic known for its high mechanical strength, stiffness, and excellent dimensional stability. It offers low moisture absorption, good chemical resistance, and high fatigue resistance while maintaining smooth sliding properties under load. POM is commonly used for producing precision parts such as bearings, gears, bushings, insulators, pump components, and fastening elements in automotive, industrial, and consumer applications requiring durability and wear resistance.

Material Properties

Processes:

Special properties

  • Chemical resistance
  • Heat resistance > 100℃
  • Stiffness
  • Wear resistance
PropertyValue, metricValue, Imperial
Density1.39-1.43 g/cm31.39-1.43 g/cm3
Elongation at Break7-30%7-30%
Hardness85D85D
Ultimate Tensile Strength54.5-79 MPa54.5-79 MPa

Download datasheets

Download general datasheet Download injection molding datasheet
  • CNC machined part without surface finishes (3D render, aluminium)
    Bead blasting (3D render)
    dragger

    Bead blasting

    Bead blasting involves spraying a pressurised stream of tiny beads of media, plastic or glass beads, from a nozzle onto the surface of the part. This removes the burrs and imperfections, leaving a smooth finish.

    Notes:

    The recommended part size is 6-600 mm in both height and width. Smaller parts are hard to hold and tough to produce an even surface.

    Final result:

    • Uniform, matte or satin-like appearance
    • Slightly grainy in the touch
  • 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.