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High Density Polyethylene (HDPE)

Alternative and trade names
Continuum™, Dowlex™, Purell®, Alathon®, Hostalen®, Lupolen®
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Description

Depending on the grade food contact approved grades and heat stable grades are available. Its key features include:


  • Environmental stress crack resistance
  • High impact or impact modified with barrier properties
  • Good warpage properties
  • Ashby charts

    See where High Density Polyethylene (HDPE) 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

    0.94 - 0.96 g/cm³ at 20 °C

    Thermal

    Coefficient of thermal expansion

    α

    1.2E-4 - 2E-4 1/K at 20 °C

    Flammability

    UL 94 HB

    Max service temperature, long

    Tmaxlong

    70 - 80 °C

    Max service temperature, short

    90 - 120 °C

    Melting point

    Tm

    126 - 135 °C

    Specific heat capacity

    cp

    2100 - 2700 J/(kg·K) at 20 °C

    Thermal conductivity

    λ

    0.38 - 0.51 W/(m·K) at 20 °C

    Electrical

    Dielectric constant

    εr

    2.3 - 2.5 [-] at 20 °C

    Electrical resistivity

    ρel

    1.00E+15 Ω·m at 20 °C

    Optical

    Transparency

    no

    Technological properties

    Application areas

    Fuel tanks, bottle cases, trash cans, gasoline canisters, beer crates, pipes, syringe plungers

    Processing methods

    Injection molding, blow molding, extrusion, compression molding

    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.