Thermosetting aqueous resin composition, including: a) at least one thermosetting polymer carboxylic acid selected from the group consisting of polyacrylic acids having a molecular mass of 5.000 to 250,000 D; as well as maleic acid-acrylic acid-copolymers having a molecular mass of 5.000 to 250,000 D; b) at least one organic amine base, the amine base being selected from the group consisting of: alkanolamines, especially ethanolamine; linear or branched C2-C20 alkyl diamines; as well as an amine compound expressed by the general formula of: wherein: n has a value of 2 - 10 and m has a value of 1 - 50; R1 is equal to H, or R1 corresponds to the general formula of: wherein a value of p is 1 - 10; R2 and R3 are equal to H independent of one another, or correspond to general formula III: wherein q may assume a value of 2 - 10 and r may assume a value of 1 - 50; and the molecular mass of the amine compound does not exceed an approximate value of 20 000 D; c) at least one phosphorous compound that may be cross-linked with the polymeric carboxylic acid by an ester or an amide bond, according to general formula IV: wherein NM, if provided, is O or S; R4 corresponds to the general formula of V, VI, VII or VIII: - A=OorNH; - wherein s, t, u, v, w, x, y and z are 1 to 8 independent of one another; - B = OH, NH 2 or NHR7 or NR7 2, - R5, R6 are C 1 -C 8 -alkoxy, C 1 -C 8 -alkyl, phenyl, oxyphenyl, OH, NH 2, H or R4; - R7 = C 1 -C 8 -alkyl, or C 1 -C 8 -hydroxy alkyl; d) wherein the sum of amine base and phosphorous compound based on 100 parts per mass of polymeric carboxylic acid lies within the range of 30 - 100 parts per mass and wherein the mass ratio of amine base and phosphorous compound is within a range of 3:1 to 1:3; and e) at least between 0.5 and 20 parts per mass based on polymeric carboxylic acid of a metal salt selected from the group consisting of: aluminum, magnesium and zirconium salts, in particular aluminum, magnesium and zirconium carbonates, Zr(CO 3) 2, ZrOCO 3, alkaline zirconium carbonate, (NH 4) 2 CO 3 * Zr(CO 3) 2; as well as mixtures thereof. a) at least one thermosetting polymer carboxylic acid selected from the group consisting of polyacrylic acids having a molecular mass of 5.000 to 250,000 D; as well as maleic acid-acrylic acid-copolymers having a molecular mass of 5.000 to 250,000 D; b) at least one organic amine base, the amine base being selected from the group consisting of: alkanolamines, especially ethanolamine; linear or branched C2-C20 alkyl diamines; as well as an amine compound expressed by the general formula of: wherein: n has a value of 2 - 10 and m has a value of 1 - 50; R1 is equal to H, or R1 corresponds to the general formula of: wherein a value of p is 1 - 10; R2 and R3 are equal to H independent of one another, or correspond to general formula III: wherein q may assume a value of 2 - 10 and r may assume a value of 1 - 50; and the molecular mass of the amine compound does not exceed an approximate value of 20 000 D; n has a value of 2 - 10 and m has a value of 1 - 50; R1 is equal to H, or R1 corresponds to the general formula of: wherein a value of p is 1 - 10; R2 and R3 are equal to H independent of one another, or correspond to general formula III: wherein q may assume a value of 2 - 10 and r may assume a value of 1 - 50; and the molecular mass of the amine compound does not exceed an approximate value of 20 000 D; c) at least one phosphorous compound that may be cross-linked with the polymeric carboxylic acid by an ester or an amide bond, according to general formula IV: wherein NM, if provided, is O or S; R4 corresponds to the general formula of V, VI, VII or VIII: - A=OorNH; - wherein s, t, u, v, w, x, y and z are 1 to 8 independent of one another; - B = OH, NH 2 or NHR7 or NR7 2, - R5, R6 are C 1 -C 8 -alkoxy, C 1 -C 8 -alkyl, phenyl, oxyphenyl, OH, NH 2, H or R4; - R7 = C 1 -C 8 -alkyl, or C 1 -C 8 -hydroxy alkyl; wherein NM, if provided, is O or S; R4 corresponds to the general formula of V, VI, VII or VIII: - A=OorNH; - wherein s, t, u, v, w, x, y and z are 1 to 8 independent of one another; - B = OH, NH 2 or NHR7 or NR7 2, - R5, R6 are C 1 -C 8 -alkoxy, C 1 -C 8 -alkyl, phenyl, oxyphenyl, OH, NH 2, H or R4; - R7 = C 1 -C 8 -alkyl, or C 1 -C 8 -hydroxy alkyl; - A=OorNH; - wherein s, t, u, v, w, x, y and z are 1 to 8 independent of one another; - B = OH, NH 2 or NHR7 or NR7 2, - R5, R6 are C 1 -C 8 -alkoxy, C 1 -C 8 -alkyl, phenyl, oxyphenyl, OH, NH 2, H or R4; - R7 = C 1 -C 8 -alkyl, or C 1 -C 8 -hydroxy alkyl; d) wherein the sum of amine base and phosphorous compound based on 100 parts per mass of polymeric carboxylic acid lies within the range of 30 - 100 parts per mass and wherein the mass ratio of amine base and phosphorous compound is within a range of 3:1 to 1:3; and e) at least between 0.5 and 20 parts per mass based on polymeric carboxylic acid of a metal salt selected from the group consisting of: aluminum, magnesium and zirconium salts, in particular aluminum, magnesium and zirconium carbonates, Zr(CO 3) 2, ZrOCO 3, alkaline zirconium carbonate, (NH 4) 2 CO 3 * Zr(CO 3) 2; as well as mixtures thereof.