Aqueous coating composition comprising: a) at least one silane-based compound R having an isocyanate content of less than 1%, determined according to DIN EN ISO 14896:2009-07, obtained by reacting the free isocyanate groups of at least one aliphatic, cycloaliphatic, araliphatic and aromatic polyisocyanate with at least one silane compound of general formula HN[X-SiR 1 a (OR 2) 3-a] n [X'-SiR 1 b (OR 2) 3-b] m [R 3] 2-(m+n) wherein X, X' represent, independently from each other, linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; R 1 represents an alkyl, cycloalkyl, aryl, or aralkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur, or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 2 represents hydrogen, an alkyl, or a cycloalkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 3 represents a linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; n, m being, independently from each other, 1 or n being 1 and m being 0; and a, b being, independently from each other 0 to 2; and b) at least one binder B being different from the silane-based compound of general formula; and c) at least one pigment P. a) at least one silane-based compound R having an isocyanate content of less than 1%, determined according to DIN EN ISO 14896:2009-07, obtained by reacting the free isocyanate groups of at least one aliphatic, cycloaliphatic, araliphatic and aromatic polyisocyanate with at least one silane compound of general formula HN[X-SiR 1 a (OR 2) 3-a] n [X'-SiR 1 b (OR 2) 3-b] m [R 3] 2-(m+n) wherein X, X' represent, independently from each other, linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; R 1 represents an alkyl, cycloalkyl, aryl, or aralkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur, or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 2 represents hydrogen, an alkyl, or a cycloalkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 3 represents a linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; n, m being, independently from each other, 1 or n being 1 and m being 0; and a, b being, independently from each other 0 to 2; and X, X' represent, independently from each other, linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; R 1 represents an alkyl, cycloalkyl, aryl, or aralkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur, or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 2 represents hydrogen, an alkyl, or a cycloalkyl group, it being possible for the carbon chain of the alkyl, cycloalkyl, aryl, or aralkyl groups to be interrupted by nonadjacent oxygen, sulfur or NR a groups, where R a is alkyl, cycloalkyl, aryl, or aralkyl; R 3 represents a linear and/or branched alkylene or cycloalkylene radicals having 1 to 20 carbon atoms; n, m being, independently from each other, 1 or n being 1 and m being 0; and a, b being, independently from each other 0 to 2; and b) at least one binder B being different from the silane-based compound of general formula; and c) at least one pigment P.