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.

Expanded polystyrene (EPS) and extruded polystyrene (XPS) are both made from the same raw material, but where they differ is ...

Extruded polystyrene (XPS) is a polystyrene foam that has closed cell structure obtained through extrusion process ... polystyrene insulation materials such as plastic granules, XPS board, additives, ...

Extruded polystyrenes (XPS) are thermoplastic polymers manufactured through the extrusion process. These polymers are characterized by moisture resistance, superior insulation properties, owing to ...