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Polystyrene (PS)

Alternative and trade names
Styrolution®, Edistir®
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Description

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
  • Ashby charts

    See where Polystyrene (PS) falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

    Properties

    General

    Density

    ρ

    1.04 - 1.05 g/cm³ at 20 °C

    Thermal

    Coefficient of thermal expansion

    α

    6E-5 - 9E-5 1/K at 20 °C

    Flammability

    UL 94 HB

    Max service temperature, long

    Tmaxlong

    60 - 80 °C

    Max service temperature, short

    75 - 90 °C

    Specific heat capacity

    cp

    1300 J/(kg·K) at 20 °C

    Thermal conductivity

    λ

    0.16 - 0.18 W/(m·K) at 20 °C

    Electrical

    Dielectric constant

    εr

    2.4 - 2.5 [-] at 20 °C

    Electrical resistivity

    ρel

    1.00E+14 Ω·m at 20 °C

    Optical

    Transparency

    yes

    Technological properties

    Application areas

    Packaging food, packaging cosmetics, horticultural pots, insulation panels

    Processing Tag

    Processing methods

    Injection molding, extrusion, thermoforming, foaming

    This material data has been provided by M-Base.

    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.