Thick-film conductors, made from mixed and alloyed powders of Ag-15Pd and Ag-30Pd, have been explored in distilled water at a bias of 5 V to assess their resistance to electrolytic silver migration. It was found that the resistance increases with the Pd concentration in the thick films (i.e., Ag < Ag-15Pd < Ag-30Pd). The film made from mixed powders is more resistant as compared with that from alloyed powders having the same compositions (i.e., 15A < 15M and 30A < 30M). Based on electrochemical study and analysis of reaction products, the interpolation for the resistance sequence has been discussed.