Dispersing agent, comprising as the component having a dispersing action the combination of (a) at least one representative of polycarboxylate ethers with a weight content of from 0.1 to 99.9 %, (b) at least one representative of polycarboxylate esters with a weight content of up to 99.8 %, and (c) at least one representative of non-charged copolymers with a weight content of from 0.1 to 99.9 %, wherein the non-charged copolymer (c) - is a representative of the general formula wherein Q represents an ethylenically unsaturated monomer with at least one hydrolysable radical, G denotes O, C -O or O-(CH 2) p -O, where p = 2 to 8, mixtures of the variants of G being possible in one polymer; R 1 and R 2 independently of each other denote at least one C 2 -C 8 -alkyl; R 3 includes (CH 2) c, wherein c is an integer between 2 and 5 and mixtures of the representatives of R 3 in the same polymer molecule being possible; R 5 denotes at least one representative chosen from the series of H, a linear or branched, saturated or unsaturated C 1 -C 20 aliphatic hydrocarbon radical, a C 5 -C 8 cycloaliphatic hydrocarbon radical or a substituted or unsubstituted C 6 -C 14 aryl radical; m = 1 to 30, n = 31 to 350, w = 1 to 40, y = 0 to 1 and z = 0 to 1, wherein the sum (y + z) is > 0, or - is a representative of the general formula wherein X represents a hydrolysable radical and R represents H or CH 3; G, p, R 1, R 2, R 3, R 5, m, n, w, y, z and (y + z) have the meanings given under formula, or - is at least one representative of the general formula wherein R 4 denotes at least one C 1 -C 20 alkyl or C 2 -C 20 hydroxyalkyl radical and the radicals G, p, R, R 1, R 2, R 3, c, R 4, R 5 and m, n, w, y, z and (y + z) have the meanings given under formulae and. (a) at least one representative of polycarboxylate ethers with a weight content of from 0.1 to 99.9 %, (b) at least one representative of polycarboxylate esters with a weight content of up to 99.8 %, and (c) at least one representative of non-charged copolymers with a weight content of from 0.1 to 99.9 %, - is a representative of the general formula wherein Q represents an ethylenically unsaturated monomer with at least one hydrolysable radical, G denotes O, C -O or O-(CH 2) p -O, where p = 2 to 8, mixtures of the variants of G being possible in one polymer; R 1 and R 2 independently of each other denote at least one C 2 -C 8 -alkyl; R 3 includes (CH 2) c, wherein c is an integer between 2 and 5 and mixtures of the representatives of R 3 in the same polymer molecule being possible; R 5 denotes at least one representative chosen from the series of H, a linear or branched, saturated or unsaturated C 1 -C 20 aliphatic hydrocarbon radical, a C 5 -C 8 cycloaliphatic hydrocarbon radical or a substituted or unsubstituted C 6 -C 14 aryl radical; m = 1 to 30, n = 31 to 350, w = 1 to 40, y = 0 to 1 and z = 0 to 1, wherein the sum (y + z) is > 0, or - is a representative of the general formula wherein X represents a hydrolysable radical and R represents H or CH 3; G, p, R 1, R 2, R 3, R 5, m, n, w, y, z and (y + z) have the meanings given under formula, or - is at least one representative of the general formula wherein R 4 denotes at least one C 1 -C 20 alkyl or C 2 -C 20 hydroxyalkyl radical and the radicals G, p, R, R 1, R 2, R 3, c, R 4, R 5 and m, n, w, y, z and (y + z) have the meanings given under formulae and.