... 3) Moisture resistant 4) Excellent impact resistance Calcium silicate board is a composite material made of sand, ... calcium silicate board product description Raw Materials: Cement, Quartz Sand, Fiber Basic Color: Gray, invory , off-white, pure white Density ... 1200mmx2400mm,915mmx1830mm,1220mmx3660mm Thickness:3mm---24mm waterproof calcium silicate board main Characteristics: 1)Fire resistant 2)Weather ...