XPS insulation board is extruded polystyrene insulation board, which is based on polystyrene resin as raw material, together with other raw materials and polymer-containing material, through a special process heating and mixing simultaneous injection of the catalyst, and then press out the continuous extrusion molding rigid foam board manufacturing Its scientific name is insulated with extruded polystyrene foam (referred XPS), XPS has a perfect closed cellular structure, which allows XPS board has an extremely low water absorption (almost non-absorbent), moisture-proof, airtight, light weight, corrosion resistance, low thermal conductivity, high pressure resistance, aging resistance (normal use almost no decomposition of the aging phenomenon), long life, excellent performance and low thermal conductivity energy saving insulation materials.