... whiteness: >90, breaking strength: 2.7M 2)Fireproofing, dampproof ,mildewproof, Craft Relief features:1) Fireproofing, dampproof ,mildewproof, mothproofing, soundproof, high strength ... bubble, plastic bag, hot shrink and pallet---.7) You can saw,dig,bore,adhibit,mend for the gypsum cornice.8) Available ... ceiling and wall of space by concealing the junction / joint. Craft Relief