Original poster: "Robert by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com> Muriatic acid is hydrochloric acid with a trace of iron contamination. It is NOT...NOT..sulfuric and will distroy the chemistry of your plating solutions. Do not ....Do not make the mistake of using one for the other. Battery acid is dilute sulfuric acid and will work for plating. Robert Heidlrbaugh