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Polystyrene is a versatile thermoplastic that is available in a wide range of formulations. The range of properties available along with the ease of processing make polystyrene a good choice for many applications. Unmodified polystyrene is clear, rigid, brittle and moderately strong. Its electrical properties as a dielectric material are good, though it has relatively low heat resistance.
Polystyrene is soluble in most chlorinated and aromatic solvents, though not in alcohols. It is impervious to most foods, drinks and household fluids. NOTE: The resins are attacked by gasoline, lacquer thinner, turpentine and citrus-fruit-rind oil.
Applications for Polystyrene
- Light shields
- Disposable beverage cups and serviceware
- Appliances (impact grades)
- Appliance parts (high-heat formulations)