Polyglycolic acid (PGA)

Alternative and trade names
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Polyglycolic acid (PGA) offers a combination of properties that differentiate it from other polymers, making it an exciting new addition to the Plastics Industry. PGA has mechanical properties equal to or superior to those of super engineering plastics such as PEEK and PPS. Its main features:

  • Biodegradability and hydrolyzability
  • High strength and toughness
  • High abrasion resistance
  • High solvent resistance
  • Easy processing
  • 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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    1.5 - 1.7 g/cm³

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    Elastic modulus

    6.0 - 7.0 GPa

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    2.0 - 20.0 %

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    Impact strength, Charpy unnotched

    2 kJ/m²

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    3 kJ/m²

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    Tensile strength

    60.0 - 120.0 MPa

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    at 2-20% strain



    Coefficient of thermal expansion

    0.000054 1/K

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    Melting point

    220.0 - 230.0 °C

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    Specific heat capacity

    1120 J/(kg·K)

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    Thermal conductivity

    0.35 W/(m·K)

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    Dielectric constant

    4.2 [-]

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    Electrical resistivity

    1000000000000 Ω·m

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    Technological properties

    Application areas

    Biodegradable food and beverage packaging, barrier layer in multilayer PET bottles

    Processing methods

    Injection molding, extrusion, thermoforming