Polystyrene Xps Boardis made with polystyrene. Its sealed and foamed structure helps to have many advantages, incuding high-resist compression, waterproof, moistureproof, air proof, light weight, anti-corrosion, long service life and low conductivity factor and so on. Technical information 1. Thickness: 6-100mm Width: 600~900mm Length: 900~2400mm 2. Compressive Strength: > =250Kpa 3. Density: 35-40kg/m3 4. Thermal Conductivity: < =0. 029 W/(m. k)(25 centi degree) 5. Dimensional stability: Maximum 1. 5% 6. Water Absorbability: < =1. 00% 7. Moisture Permeability: < =2. 0 Superior performance make it fit for a wide range of acoustic and thermal insulating applications, including roofing, wall, freezing plant, floor etc. XPS foam board can also be covered with aluminum or thin cement polymer mortar with fiberglass mesh. Minmum order is 40'GP.