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Home Materials Library Polypropylene (PP)
MJF Polypropylene Front MJF Polypropylene Front fancy-box-icon
MJF Polypropylene Back MJF Polypropylene Back fancy-box-icon
MJF Polypropylene Side MJF Polypropylene Side fancy-box-icon
MJF Polypropylene Front
MJF Polypropylene Back
MJF Polypropylene Side

Polypropylene (PP)

  • Alternative Designations: Polypropylene homopolymer (PPHP)
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Price range:
€€€€€

Colors:

  • Whitish / Gray

Description:

Polypropylene (PP) is renowned for its excellent surface resolution, feature details, and nearly isotropic mechanical properties, making it comparable to injection-molded PP in terms of toughness, fatigue resistance, and lightweight characteristics. It offers outstanding chemical resistance, low moisture absorption, and exceptionally high elongation at break, ideal for high-volume functional prototypes, limited-run production, and durable components like snap-fit assemblies and living hinges. Common uses include electronic system housings, guides, clips, fuel and oil housings, as well as environmental control system components such as fan housings, ducting, and valves. The properties of this material can vary based on the selected manufacturing process.

 

 

 

 

 

Material Properties

Processes:

Special properties

  • Chemical resistance
  • Density < 1 g/cm³
  • Heat resistance > 100℃
  • Impact resistance
  • Stiffness
  • Water resistance
Property (SLS)Value, metricValue, ImperialType
Density0.84 g/cm30.84 g/cm3-
Elongation at Break34%34%-
Hardness7070Shore D
Ultimate Tensile Strength29 MPa4.2 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 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.

  • Bead blasting

    Depowdering of parts with bead blasting. The final parts are slightly grainy in the touch with a satin-like matte appearance.

    Notes:

    Semi-sintered surface particles remain on the part even after initial depowdering.

    Final result:

    • Slightly grainy in the touch
    • Satin-like matte appearence