Polystyrene (PS)

Alternative and trade names
Styrolution®, Edistir®
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Transparent polymers suitable for injection molding or extrusion of complex items requiring good toughness and improved elasticity. Its key features include:

  • Transparency
  • Color consistency
  • Easy processing
  • Stiffness with good mechanical strength
  • Thermal resistance
  • This material data has been provided by M-Base.

    "Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    1.04 - 1.05 g/cm³

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    Elastic modulus

    2.0 - 3.3 GPa

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    1.0 - 7.0 %

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    Impact strength, Charpy notched

    2.0 - 6.0 kJ/m²

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    Impact strength, Charpy unnotched

    7 kJ/m²

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    18 kJ/m²

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    Tensile strength

    20.0 - 60.0 MPa

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    at 1-7% strain



    Coefficient of thermal expansion

    6e-05 - 9e-05 1/K

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    Specific heat capacity

    1300 J/(kg·K)

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    Thermal conductivity

    0.16 - 0.18 W/(m·K)

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    UL 94 HB



    Dielectric constant

    2.4 [-]

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    2.5 [-]

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    Electrical resistivity

    100000000000000 Ω·m

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    Technological properties

    Application areas

    Packaging food, packaging cosmetics, horticultural pots, insulation panels

    Processing methods

    Injection molding, extrusion, thermoforming, foaming