1.Fire retardant 2.High quality environmental products 3.Loght and convenient insluating material Density: 32-40kg/m3Thickness: 20-100mmSize: 1800*600mm; 1200*2400mmThermal conductivety:≤0.028W/m.kCompressive strength: >250kpa XPS insulation board is extruded polystyrene insulation material with high density. It has smooth surface through extrusion, and has completely closed cell inside. This ...