A cyanide-free aqueous immersion-type plating bath for deposition of gold, comprising (i) a source of gold ions, (ii) at least one complexing agent selected from the group consisting of carboxylic acids, hydroxycarboxylic acids, aminocarboxylic acids and salts of the aforementioned, (iii) sulfite ions, (iv) thiosulfate ions, and (v) at least one ureylene polymer additive selected from polymers according to formulae and: wherein n is an integer 1 and 40, wherein monomer A is selected from compounds according to formulae to wherein R 1, R 2, R 5, and R 6 are independently selected from the group consisting of a substituted or unsubstituted hydrocarbon residue with 1 to 10 carbon atoms, R 3, R 4 and R 7 are independently selected from the group consisting of (CH 2) p, wherein p stands for an integer of 2 to 12, -[CH 2 CH 2 O] m -CH 2 CH 2 - group, wherein m is between 1 and 40, and wherein L stands for a divalent residue, which is selected from the group consisting of -(CH 2) p -, wherein p is an integer between 1 and 12, -CH 2 -CH -CH 2 -, -[CH 2 O] q -CH 2 CH 2 - and -[CH 2 CH 2 O] q -CH 2 CH 2 -, wherein q is an integer between 1 and 40 and wherein the ureylene polymer additive according to formulae and are obtained by reacting one or more diamino compounds of formulae to with one or more compounds of the formula P-L-Q wherein L has the same meaning as in formulae and and wherein P and Q are the same or different and selected from the group consisting of Cl, Br, I, mesylate, triflate nonaflate, methansulfonate and tosylate. (i) a source of gold ions, (ii) at least one complexing agent selected from the group consisting of carboxylic acids, hydroxycarboxylic acids, aminocarboxylic acids and salts of the aforementioned, (iii) sulfite ions, (iv) thiosulfate ions, and (v) at least one ureylene polymer additive selected from polymers according to formulae and: wherein n is an integer 1 and 40, wherein monomer A is selected from compounds according to formulae to wherein R 1, R 2, R 5, and R 6 are independently selected from the group consisting of a substituted or unsubstituted hydrocarbon residue with 1 to 10 carbon atoms, R 3, R 4 and R 7 are independently selected from the group consisting of (CH 2) p, wherein p stands for an integer of 2 to 12, -[CH 2 CH 2 O] m -CH 2 CH 2 - group, wherein m is between 1 and 40, and wherein L stands for a divalent residue, which is selected from the group consisting of -(CH 2) p -, wherein p is an integer between 1 and 12, -CH 2 -CH -CH 2 -, -[CH 2 O] q -CH 2 CH 2 - and -[CH 2 CH 2 O] q -CH 2 CH 2 -, wherein q is an integer between 1 and 40 and wherein the ureylene polymer additive according to formulae and are obtained by reacting one or more diamino compounds of formulae to with one or more compounds of the formula P-L-Q wherein L has the same meaning as in formulae and and wherein P and Q are the same or different and selected from the group consisting of Cl, Br, I, mesylate, triflate nonaflate, methansulfonate and tosylate. wherein n is an integer 1 and 40, wherein monomer A is selected from compounds according to formulae to wherein R 1, R 2, R 5, and R 6 are independently selected from the group consisting of a substituted or unsubstituted hydrocarbon residue with 1 to 10 carbon atoms, R 3, R 4 and R 7 are independently selected from the group consisting of (CH 2) p, wherein p stands for an integer of 2 to 12, -[CH 2 CH 2 O] m -CH 2 CH 2 - group, wherein m is between 1 and 40, and wherein L stands for a divalent residue, which is selected from the group consisting of -(CH 2) p -, wherein p is an integer between 1 and 12, -CH 2 -CH -CH 2 -, -[CH 2 O] q -CH 2 CH 2 - and -[CH 2 CH 2 O] q -CH 2 CH 2 -, wherein q is an integer between 1 and 40 and wherein the ureylene polymer additive according to formulae and are obtained by reacting one or more diamino compounds of formulae to with one or more compounds of the formula P-L-Q wherein L has the same meaning as in formulae and and wherein P and Q are the same or different and selected from the group consisting of Cl, Br, I, mesylate, triflate nonaflate, methansulfonate and tosylate.