... from polymer and inorganic materials. It has excellent anti-cracking, no yellowing, easy smoothening, excellent bonding, water resistant ... plasterboards, calcium silicate boards, and walls to prevent the cracking. Apply to repairing roofs, sealing of corner between ... package.This product is non-toxic, non-corrosive, non-flammable, non-explosive and solvent free. It is a non-dangerous material, please ...