Aqueous dispersion comprising a. 50 - 80% by weight water, preferably 55 - 75% by weight water, b. 10 - 30% by weight, preferably 15 - 25% by weight hydrophilic silicon dioxide having a methanol wettability of 0% by volume methanol in a methanol-water mixture, c. 2 - 25% by weight of at least one alcohol alkoxylate of the general formula R 4 O((CH 2) m O) n H, wherein R 1 is a branched or unbranched alkyl or alkenyl radical having 10 - 25 carbon atoms, m = 2 or 3 and n = 10 - 50, d. 0.1 - 20% by weight, preferably 0.5 - 5% by weight of a silanol obtained by hydrolysis of at least one dialkoxysilane of the general formula R 2 R 3 Si(OR 4) 2, wherein R 2, R 3 and R 4 are in each case a branched or unbranched alkyl or alkenyl radical having 1 - 25 carbon atoms, e. 0.5 - 4% by weight, preferably 1.50 - 4.0% by weight and particularly preferably 2.0 - 3.0% by weight of at least one amine and/or an amino alcohol having a molecular weight of less than 500 g/mol and f. 0.1 - 20% by weight of at least one copolymer of the general formula where Z = where M = hydrogen, monovalent or divalent metal cation, ammonium ion, organic amine radical, c = 1, or in the case where M is a divalent metal cation, c = 0.5 X = -OM c or -O-(C p H 2p O) q - R 5 where R 5 = H, aliphatic hydrocarbon radical having 1 to 20 carbon atoms, cycloaliphatic hydrocarbon radical having 5 to 8 carbon atoms, optionally substituted aryl radical having 6 to 14 carbon atoms, p = 2 - 4, q = 0 - 100, -NHR 6 and/or -NR 6 2 where R 6 = R 5 or -CO-NH 2 Y = O, NR 6 A 1 = ethylene radical, propylene radical, isopropylene radical, butylene radical, b = 10 - 30, a = 0 - 50, k = 10 - 30, wherein the sum b+k is in the range of 20 - 60, g. 0.1 - 6.0% by weight of at least one polyethylene glycol and/or polypropylene glycol, wherein all figures refer to percentages by weight of the entire dispersion composition, and wherein the dispersion has a pH of <11. a. 50 - 80% by weight water, preferably 55 - 75% by weight water, b. 10 - 30% by weight, preferably 15 - 25% by weight hydrophilic silicon dioxide having a methanol wettability of 0% by volume methanol in a methanol-water mixture, c. 2 - 25% by weight of at least one alcohol alkoxylate of the general formula R 4 O((CH 2) m O) n H, wherein R 1 is a branched or unbranched alkyl or alkenyl radical having 10 - 25 carbon atoms, m = 2 or 3 and n = 10 - 50, d. 0.1 - 20% by weight, preferably 0.5 - 5% by weight of a silanol obtained by hydrolysis of at least one dialkoxysilane of the general formula R 2 R 3 Si(OR 4) 2, wherein R 2, R 3 and R 4 are in each case a branched or unbranched alkyl or alkenyl radical having 1 - 25 carbon atoms, e. 0.5 - 4% by weight, preferably 1.50 - 4.0% by weight and particularly preferably 2.0 - 3.0% by weight of at least one amine and/or an amino alcohol having a molecular weight of less than 500 g/mol and f. 0.1 - 20% by weight of at least one copolymer of the general formula where Z = where M = hydrogen, monovalent or divalent metal cation, ammonium ion, organic amine radical, c = 1, or in the case where M is a divalent metal cation, c = 0.5 X = -OM c or -O-(C p H 2p O) q - R 5 where R 5 = H, aliphatic hydrocarbon radical having 1 to 20 carbon atoms, cycloaliphatic hydrocarbon radical having 5 to 8 carbon atoms, optionally substituted aryl radical having 6 to 14 carbon atoms, p = 2 - 4, q = 0 - 100, -NHR 6 and/or -NR 6 2 where R 6 = R 5 or -CO-NH 2 Y = O, NR 6 A 1 = ethylene radical, propylene radical, isopropylene radical, butylene radical, b = 10 - 30, a = 0 - 50, k = 10 - 30, wherein the sum b+k is in the range of 20 - 60, M = hydrogen, monovalent or divalent metal cation, ammonium ion, organic amine radical, c = 1, or in the case where M is a divalent metal cation, c = 0.5 X = -OM c or -O-(C p H 2p O) q - R 5 where R 5 = H, aliphatic hydrocarbon radical having 1 to 20 carbon atoms, cycloaliphatic hydrocarbon radical having 5 to 8 carbon atoms, optionally substituted aryl radical having 6 to 14 carbon atoms, p = 2 - 4, q = 0 - 100, -NHR 6 and/or -NR 6 2 where R 6 = R 5 or -CO-NH 2 Y = O, NR 6 A 1 = ethylene radical, propylene radical, isopropylene radical, butylene radical, b = 10 - 30, a = 0 - 50, k = 10 - 30, wherein the sum b+k is in the range of 20 - 60, g. 0.1 - 6.0% by weight of at least one polyethylene glycol and/or polypropylene glycol,