FIELD: chemistry.
SUBSTANCE: impregnating composition for protecting concrete comprises, by wt %: 5.0-26.0 divalent metal hexafluorosilicate; oxalic acid 3.0-5.0; surfactant 0.1-2.0; water the rest.
EFFECT: increase the depth of penetration of the impregnating composition in the treated concrete, reducing the viscosity of the impregnating composition, protection against the penetration of treated concrete chemicals and oil, reducing its peeling.
2 cl, 6 dwg
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