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 …

12 Inch 7-Pack Foam Circles for Crafts (1" Thick), Polystyrene Round Foam Disc for DIY Projects, Cakes and Decorations, Sculpture, Modeling, Arts and Crafts Supplies. (White) Need help?

Jan 13, 2026 · Styrofoam is made of styrene, a petroleum-based substance refined into a polymer called polystyrene. Through an extrusion process, 98% air is introduced to the plastic, creating a …

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.

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 …

Jun 4, 2025 · Demystify Styrofoam! Our ultimate guide explains what Styrofoam (XPS) truly is, its key properties, how it differs from EPS foam, and its diverse uses, updated for June 2025.

Oct 6, 2024 · What Is Styrofoam? Styrofoam, also known as expanded polystyrene (EPS) or extruded polystyrene (XPS), is a lightweight, rigid, closed-cell foam material made from polystyrene. It is …

4 days ago · LIVERMORE — Nicky Neau is looking for something to do with her stacks and stacks of white foam boards. Expanded polystyrene foam, better known by the brand name Styrofoam, is light, …

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 …

Nov 18, 2024 · These Styrofoam bans couldn’t come soon enough as far as we’re concerned. Also referred to as expanded polystyrene foam, Styrofoam is a cheap, lightweight material made from …