METHOD FOR PREPARING INORGANIC PLATE

摘要

PROBLEM TO BE SOLVED: To provide a method for preparing an inorganic plate which prevents blocking and efflorescence from being generated and has excellent coating adhesion. SOLUTION: The method for preparing the inorganic plate wherein after a hydraulic material containing a cement as a main ingredient is molded, it is aged is provided and before aging, a sealer with 0.3-0.8 g/square 'shaku' (303 mm) is applied.