Mar-flex “NeoFoam” Insulation Board with *Neopor technology is a ASTM-C 518-04 expandable polystyrene foam board that has considerably better thermal insulation capability than conventional EPS products. The insulating panels made of *Neopor are the solution for architects, contractors and builders alike. The high-tech *Neopor foam sets the standard for insulating efficiency and environmental compatibility all while using far less product to achieve the same insulating effect.