FIELD: chemistry.
SUBSTANCE: group of inventions relates to construction. Fluorine-free composition for hydrophobisation of porous mineral substrates and provision of water-repelling effect on their surface is based on at least one hydrophobising active substance and at least one hydrophobic oxide or hydroxide or hydrate of aluminium, or silicon, or titanium oxide, with content of hydrophobic metal oxide, or hydroxide, or hydrate of aluminium or silicon, or titanium oxide in composition constituting from 0.05 to 4 wt % counted per composition.
EFFECT: hydrophobisation of porous materials and imparting them water-repelling properties.
15 cl, 1 tbl, 7 ex
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