An effect of NH4Cl, Al-2(SO4)(3) and H3BO3 present in galvanizing baths on equilibrium of H+/Zn2+ ion exchange on gelous Amberlite IR 120 and macroporous Dowex Marathon MSC was studied to determine the partition and stoichiometry coefficients for the H+/Zn2+ ion exchange under static conditions at 22 ae C. The exchange proceeds in a non-stoichiometric way. The presence of studied compounds in plating in rinsewater from the zinc plating resulted in a decrease in Zn2+ partition coefficients and a deterioration of Zn2+ ion exchange. Both ion exchangers could be used for remove of Zn2+ ions from the plating rinsewater, The macroporou Dowex Marathon MSC was more efficient than the gelou Amberlite IR 120, however, its regeneration require twic more concentrated sulphuric acid.