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Term:  polystyrene



A type of plastic which is most frequently encountered in one of two forms:

  • The hard plastic from which model kits are often moulded.

  • Polystyrene foam - commonly used as a packing material and for thermal insulation.

Note that the term 'polystyrene' is often used to mean 'polystyrene foam' while the hard version is often referred to as 'styrene'.

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