The composites of inorganic covering material developing high adhesive strength in the wet surface condition

摘要

PURPOSE: An inorganic section coating material composition is provided, to improve the adhesive strength to the wet surface, the acid resistance and the chemical resistance, and to enhance processability by enabling the coating process of a primer to be omitted. CONSTITUTION: The inorganic section coating material composition comprises 100 parts by weight of a mixture comprising a hydrophilic epoxy resin, a curing agent and inorganic powder in the ratio of 1 : 2.5 : 3-9 by weight; and 20 parts by weight of water. Preferably the inorganic powder comprises special cement with a fineness of 5,000 cm2/g and silica in the ratio of 45-65 : 35-55 by weight. Optionally the mixture of the composition comprises a hydrophilic epoxy resin, a curing agent, inorganic powder and an adhesive strength reinforcing agent in the ratio of 1 : 2.5 : 3-9 : 0.5 by weight.