Harbor Foam is a leading manufacturer in the expanded polystyrene (EPS) industry. With over 100 years combined service in manufacturing and supplying EPS to many innovative industries in Michigan, ...

Styrofoam is a trademarked brand name for a specific type of building product made by the Dow Chemical Company. It's made from extruded polystyrene foam. The foam food containers we're familiar ...

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.