Containers made from Styrofoam or expanded polystyrene (EPS) foam are not safe to use in a microwave, unless they have a microwave-safe label. They may leach chemicals into food, which could ...

This Thermalwall PH panel, designed for Passive House, is a block of EPS foam with a special removable piece covering a steel channel.

Just one year ago, ACH Foam Technologies changed the insulation industry by releasing Foam-Control Plus+, an architectural grade EPS insulation. With a range of high compressive strengths and high ...

At its plant in Leominster, Mass., the venture took in EPS and polystyrene foam from McDonald’s and other fast-food restaurants. It got around the density problem by only drawing from local sources.

EPS is hand- and machine-shapeable, although because of the larger cell size, it’s not quite as easy to shape as polyurethane foam. The upside of it being accessible to those used to traditional ...