| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved hygroscopic wall-coating material which can effectively prevent the adhesion and intrusion of stains without loss of hygroscopicity, and which can maintain a beautiful appearance for a long term at the time of execution of the wall-coating material. SOLUTION: The wall-coating material contains a hygroscopic inorganic porous material, and the wall-coating layer, which is obtained by applying the wall-coating material to a wall surface and by drying it, has hygroscopicity. The wall-coating layer indicates a moisture-absorption amount of 30 g/m<SP>2</SP>or more, and the surface of the wall-coating layer indicates water repellency of a water contact angle of 80 degrees or more. The wall-coating material is useful which contains 10 to 90 wt.% of the hygroscopic inorganic porous material, 1 to 25 wt.% of a water-base resin binder (solid content), 0.1 to 15 wt.% of water glass (solid content), and 8 to 88 wt.% of a non-water-absorbing inorganic filler. COPYRIGHT: (C)2007,JPO&INPIT
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