A method for the prevention of anfeue bore effects in the case of impregnations of substrates

摘要

The present invention relates to a special process for the prevention of anfeue bore effects in the case of the impregnation of porous inorganic substrates, by applying to the substrate surface to be treated first applying a primer, the primer drying and curing, wherein the substrate surface is hydrophobic and oleophobic properties and drops of water which is applied thereto by evaporation, before they penetrate the substrate, and a likewise the applied drops of n - decane after about 30 seconds can be removed, without that the drops dark spots leave behind on the substrate surface, and subsequently carries out the impregnation.Furthermore, the present invention relates to the use of fluorine alkyl groups modified and / or fluorine functional operation or fluoroalkyl - / aminoalkyl - / alkoxy - or hydroxy-functional siloxane systems or fluorine alkyl functional silane - or siloxane systems or mixtures of at least two of the previously mentioned substances or their solutions in water and / or alcohol as a primer for the prevention of anfeue in the wall of the effects of substrates in buildings protection measures by means of impregnation.