... absorption,easy installation ,deadening... Specifications high strength, freeze-proof, water-proof, fiber-proof, sound-proof and non- deformation. Used as ... -6mmMaterials: Tobermorite, cement, Quartz sand, reinforced fiberFire-proof rate: A-class incombustible (GB8624-1997)Incombustibility: 180 ... %Heat conduction: 0.24W/MK (Jc/t564) AverageSound-proof: 45db (GBJ75-84)Anti-bend strength: >16MPa ...