FIELD: construction.
SUBSTANCE: water-repellent composition is proposed to protect ceramic materials, including the following as the base: aqueous emulsion of polymeric petroleum resin solution in an organic dissolvent and an anionic surfactant, the dissolvent is water, and additionally an aqueous dispersion of oil paraffin containing polyvinyl alcohol as a stabiliser, and a hydrotrope additive.
EFFECT: composition does not form a solid film, but settles on the surface of ceramic item capillaries, which makes it possible to carry out gas exchange in a treated item with preservation of coating steam permeability, helps to reduce intensity of moisture absorption and to lower blooms, and also makes it possible to perform hydrophobisation at the stage of ceramic item manufacturing.
1 cl, 1 tbl
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