... below characteristic, light weight, high strength, Low thermal conductivi Fireproof Calcium Silicate Board is a new white & hard thermal insulating material, it has ... , Low thermal conductivity, high temperature, corrosion resistance, non-toxic, easy cutting & sawing.Product NameFireproof Calcium Silicate BoardHCS-170HCS-220HCS-270Bulk densityKg/m3170220270Max temperature ...