| abstract |
(57) [Problem] To develop a pollution-free sealer composition which is applied to an inorganic building material to improve water permeability, moisture resistance, adhesion, strength of the inorganic building material, and the like. [MEANS FOR SOLVING PROBLEMS] Solid content 100 of vinyl copolymer resin emulsion (A) having a glass transition temperature of 0 ° C. or higher The layered silicate compound (B) is used in an amount of 1 to 100 parts by weight. An aqueous sealer for inorganic building materials characterized by containing by weight. 2. The vinyl copolymer resin-based emulsion (A) is a core-shell type vinyl copolymer resin-based emulsion, wherein the glass transition temperature of the shell portion is 40 to 90 ° C. Aqueous sealers for inorganic building materials according to item 6. 3. 3. The aqueous sealer for inorganic building materials according to item 1 or 2, wherein the layered silicate compound (B) is at least one selected from montmorillonite, beidellite, nontronite, saponite, hectorite, stevensite, and bentonite. |