Polytetrafluoroethylene (PTFE)

Alternative and trade names
Teflon®
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Description

It helps architects push the boundaries of form and function. It helps keep vehicles on the road longer. And it helps protect equipment in extremely demanding operating conditions. PTFE can even be used as an additive to improve slip or wear characteristics in ink, plastics and lubricants. Its key features include:


  • Exceptional chemical resistance
  • Wide service temperature range
  • Low coefficient of friction
  • Low permeability
  • Long service life
  • Outstanding weather resistance
  • 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.

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    Properties

    General

    PropertyValue

    Density

    2.13 - 2.23 g/cm³

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    Mechanical

    PropertyValueComment

    Elastic modulus

    0.4 - 0.75 GPa

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    Elongation

    350 - 550 %

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    Impact strength, Charpy notched

    13 - 15 kJ/m²

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    Tensile strength

    20 - 35 MPa

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    at 350-500% strain

    Impact strength, Charpy unnotched

    no break

    Thermal

    PropertyValue

    Coefficient of thermal expansion

    0.0001 - 0.0002 1/K

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    Melting point

    325 - 335 °C

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    Specific heat capacity

    1000 J/(kg·K)

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    Thermal conductivity

    0.25 W/(m·K)

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    Flammability

    UL 94 V0

    Electrical

    PropertyValue

    Dielectric constant

    2.1 [-]

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    Electrical resistivity

    1e+18 Ω·m

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    Optical

    PropertyValue

    Transparency

    no

    Technological properties

    Property
    Application areas

    Pan-coating, body implants, high temperature capacitors, carriers for printed circuit boards, pistons

    Processing methods

    Extrusion, compression molding, coating