A widely used material for thermal insulation in the form of boards. It is a shrinkage material with a porous structure, obtained by "gluing" pre-expanded polystyrene granules containing blowing agent. The foaming is usually obtained by heating the granules with water vapor. Styrofoam consists of closed cells, inside which there is a polystyrene foam. These cells are connected together and there are small air voids between them. It creates a block form, which is then cut into plates of required dimensions. The structure of cut surfaces in this way is quite porous. In our online store you will find polystyrene with different applications and thicknesses, all at an attractive price.