| 摘要 |
Plaster for exterior rendering comprises 10-25 % water, 2-20% potassium silicate, 0.5-5 % colloidally dispersed fumed silica, 0.05-0.3 % wetting agent, 0.1-0.5 % cellulose ether, 0.2-2 % hydrophobizing agent, 0.05-1 % dispersion aid and 49-80 % fillers.
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