Expanded Polystyrene Sheet – EPS Foam Blocks, are a rigid, closed-cell, thermoplastic Foam Blocks, that are basically produced from solid beads of polystyrene. which is polymerized from styrene monomer and contains an expansion gas (pentane) dissolved within the polystyrene bead.
Each solid polystyrene bead contains small amounts of gas which expand when heat (in the form of steam) is applied, thus forming closed cells of EPS. These expanded cells occupy approximately 40 times the volume of the original polystyrene bead, and so with a second heat treatment using a mold, large EPS blocks can be molded into specific customized shapes.




