MODIFIED COPPER-TIN ELECTROLYTE AND PROCESS FOR THE DEPOSITION OF BRONZE LAYERS

摘要

Non-toxic pyrophosphate-containing electrolyte comprises metals (which are to be deposited) in the form of water-soluble salts, a brightener system obtained from the reaction product of epichlorohydrin with hexamethylene tetramine and additionally carbonate ions and/or hydrogen carbonate ions. An independent claim is included for an electrolytically deposition method for galvanic application of decorative bronze layers on consumer goods and technical articles comprising immersing the substrates (that are to be coated) in a electrolyte, which is the electrolyte as above per se.