explains that Styrofoam is referred to as "extruded polystyrene" or XPS, which is structurally different from expanded ...

It's made from extruded polystyrene foam. The foam food containers we're familiar with are made from a similar, but different ...

In his guide, he details the difference between XPS (expanded polystyrene) and EPS (extruded polystyrene ... He cuts the foam into roughly the right shape with a hot wire. Clean up is done ...