General Purpose Polystyrene is a polymerization product of styrene (vinyl benzene), the thermoplastic polymer of linear structure. It is widely used due to its good physical and mechanical properties, environmental safety, chemical inertness to many substances, moisture-, electricity- and frost resistance. Used in the production of various household products (disposable tableware, packaging, toys, etc.) and the construction industry (insulation boards, left-in-place formwork, sandwich panels)