DuPont™ Styrofoam™ Brand Panelmate™ Extruded Polystyrene Foam Insulation is a high-performance product with an R-value that helps you create durable, strong and energy-efficient concrete wall systems. DuPont’s distinct extrusion process yields closed-cell, rigid plastic foam with a smooth, high-density skin. This makes Styrofoam™ Brand Panelmate™ XPS Foam Insulation highly resistant to moisture, which helps it maintain its thermal value when subjected to the concrete panel manufacturing process. The Styrofoam™ Brand XPS product line gives you the proven thermal and moisture performance of the original XPS, plus the product options you need to design and build energy-efficient, resilient structures all the way to the top. It’s lightweight and easy to install, which makes the work go faster, and it’s readily available through our wide distributor network. When and where you need it, Styrofoam™ Brand is there.