XPS insulation board is extruded polystyrene insulation board, which is based on polystyrene resin as the raw materials with other raw materials and polymer containing materials, by heating the mixture injected into the catalyst, and then press the molding and extrusion manufacturing rigid foam boards. It's scientific name is insulated with extruded polystyrene foam (referred to as XPS), XPS has a perfect closed cellular structure that allows XPS board has very low water absorption (almost non-absorbent ), low thermal conductivity, high resistance to stress, aging resistance (normal use almost no decomposition of the phenomenon of aging.) The company's insulation board (XSP) named Paul Green board is through a special process of sheet metal forming a continuous extrusion foaming, the surface of the dura mater smooth, and the internal structure of the completely closed-cell foam, honeycomb structure, the formation of polar excellent insulation, low thermal conductivity, high compressive strength, non-absorbent, breathable and strong, corrosion-resistant, not degradation, EPS and other characteristics and strength than other materials, insulation, air infiltration, water resistant with large improved; in the flooded conditions, can still maintain its integrity and the compressive strength insulating properties, is the roof construction, roof, wall, underground, cold storage, highway and other projects of affordable new construction materials