... free from smog ,high intensity, light quality, sound insulation ,heat preservation,waterproof,fireproof. Free from freezing and erosion, minuteness expanding & ... , it is also absolutely suitable to the structure for heat prevention, sound insulation wall. Places with dampness, mobile ... -absorption ratio :> 95% Bending strength: 0.8-1Mpa Heat transfer coefficient:<0.065w/m.k Dryness retraction :< 0 ...