FIELD: chemistry.
SUBSTANCE: redispersible dry composition of the polymer topcoat include: the powdered organic binder comprising a polymer obtained by spray drying or lyophilization dispersion containing the polymer and a protective colloid; deprotecting agent selected from agents that are effective without increasing the pH of the dispersion obtained by mixing said composition with water to a value of 10 or more; absorptive filler.
EFFECT: no tendency to the appearance of efflorescence on the surface of the coating is not strongly alkaline pH after dispersing the dry formulation in water, easy reproducibility, protective properties of coatings and waterproofing.
12 cl, 18 ex
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