Styrofoam is a brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and …

Browse polystyrene foam blocks suitable for sculptures, models, and event displays. Versatile crafting solutions available.

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Jan 13, 2026 · What is Styrofoam? It’s more than just foam cups! Learn about EPS, XPS, and #4 Styrofoam, their differences, and whether they can be recycled.

Since its invention in 1941, Styrofoam™ Brand extruded polystyrene (XPS) has built a rich, storied heritage as an innovative, sustainable building product – creating an entire insulation material category.

4 days ago · Styrofoam Explained: From Polystyrene Chemistry to Recycling and Bio-Foam Alternatives An evidence-based primer explaining what Styrofoam really is, how EPS and XPS differ, whether the …

Apr 9, 2026 · Styrofoam is plastic, specifically a brand name for extruded polystyrene (XPS) foam. It is derived from petroleum, a fossil fuel, and belongs to the polymer family.

If you’re interested in insulating with STYROFOAM, note that STYROFOAM insulation is a type of extruded insulation. Polyisocyanurate is another option, coming in as the densest and most …

Styrofoam is created through a process of expanding small polystyrene beads by adding heat, which causes the material to puff up and form a solid, closed-cell foam structure. This structure gives …

Oct 8, 2025 · Are you wondering what is the difference between polystyrene and Styrofoam? Keep reading to find out more as well as information about when to use them.