... deforming Product Data:Materials: Tobermorite, Portland cement, Quartz sand, Paper plugDensity: ≥ 1300 kg/m3Flexural strength: ≥ 15.80 MpaMoisture content: ≤ 10%Thermal conductivity ... Standard 476, part20&22, 1987. Radioactivity: GB65662001 A ClassFiber Cement Board is a superior, weather resistance, pre-finished, architectural cladding ...