| 摘要 |
PURPOSE:To provide the title coating compsn. which can form a new wall surface merely by applying it directly to a stained wall, by blending a water-soluble nonionic paste and an aluminum salt with a principal component composed of an org. or inorg. aggregate and a pigment. CONSTITUTION:A nonionic paste (A) (e.g. methyl-cellulose) which is water-solu ble, but is not dissociated into ions in water, and an aluminum salt (B) (e.g. aluminum sulfate) are blended with a principal component (C) composed of a mixture of an org. or inorg. fibrous material, a particulate matter, a flaky material or their ground product (e.g. ground pulp) and a pigment to obtain the desired topcoating compsn. When the compsn. is applied to a stained old wall, water-soluble anionic staining material such as lignin is caused to agglomer ate and gel by the action of components A and B, whereby pollution is prevented and a new wall surface can be formed.
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