... Quality but Competitive Price + Fireproof and Water Resistant + High Strength. Light Weight Calcium Silicate BoardNon Asbestos, Anti Fungus.High quality raw material ... .Low in thermal movement i.e. low shrinkage.High strength, light weightWidely used in Hospitals, Hotels, Schools, Offices, Subways, and ... Absorption)%19.6<=25(Wet Expansion)%0.176<=0.23 Light Weight Calcium Silicate Board