XPS board of extruded polystyrene is generally promote the application of new materials, such utilization of waste plastics turning waste into treasure of new environmentally friendly materials, because of its excellent high strength, compressive strength, excellent thermal insulation , light texture, easy to use, high-quality water-repellent, moisture resistance and environmental performance, stability, good corrosion resistance, as the construction industry generally promote new building materials. Widely used in wall and floor insulation.