In his guide, he details the difference between XPS (expanded polystyrene) and EPS (extruded polystyrene) and how each product’s closed cell and open cell nature affects the final board.

CalRecycle says polystyrene foam food ware producers no longer will be able to sell, distribute or import those products in ...

When it comes to shaping boards, the three main types of foam are Polyurethane (PU), Expanded Polystyrene (EPS) and Polystyrene (PS). No one foam is “better” than the other, rather they all ...