| 摘要 |
<p>A three-pack surface-treating agent composed of an aqueous slurry type treatment for a substrate, a liquid reinforcement for a substrate, and a colorant. The aqueous slurry type treatment is a mixture mainly comprising a powdered siliceous material containing silicon oxide as the main component, a calcium-containing material comprising at least either of calcium hydroxide and calcium oxide, at least either of an organic acid and an organic acid salt each having an acid dissociation constant of 3 to 5 and water. The liquid reinforcement is a mixture mainly comprising an aqueous solution of an alkali silicate and at least either of an organic acid and an organic acid salt having an acid dissociation constant of 3 to 5. The colorant is one prepared by incorporating the above liquid reinforcement with a pigment and powdered perlite. A crack-free, colored coating excellent in smoothness, strengths, water resistance and gloss can be formed on a calcium-base inorganic member in a short time by applying these three components thereon successively. The workability in coating is so excellent as to bring about an enhancement in the working efficiency.</p> |
