https://www.geofoam.org/
EPS geofoam can be easily cut and shaped on a project site, which further reduces jobsite challenges. EPS geofoam is available in numerous material types that...
epsgeofoaminformation
https://northwestfoam.com/products/geo-foam/
EPS geofoam from Northwest Foam is a low density, cellular plastic foam used in landscaping and architecture as a lightweight fill.
epsgeofoamlowdensitycellular