Extruded Polystyrene (XPS) 2' x 4' x 2" Foam [Shopbot]
Insulation (Blue Board) Is A Nonstructural, Rigid Board Insulation Manufactured Of Extruded Polystyrene Foam (XPS). This foam is machinable on our Shopbot CNC Mill, and can be used for sculpture, mold-making, and architectural models. Sold in 2" x 2' x 4' blocks.