Styrofoam - Wikipedia
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 …
DuPont™ Styrofoam™ Brand XPS Insulation
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.
Foam Board Insulation - The Home Depot
Get free shipping on qualified Foam Board Insulation products or Buy Online Pick Up in Store today in the Building Materials Department.
Amazon.com: Styrofoam
Browse polystyrene foam blocks suitable for sculptures, models, and event displays. Versatile crafting solutions available.
STYROFOAM Board Insulation at Lowes.com
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 …
What Is Styrofoam? The Truth About EPS, XPS, and #4 Foam
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 …
What is Styrofoam? The Ultimate Guide [2025 June Updated]
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.