Beware as this might make your vintage cast cymbals shiny. The acid free, proprietary formulation is like no other product on the market for cleaning, restoring, polishing & protecting your cast and sheet bronze brilliant cymbals. Works great for proper cymbal care or your prized Zildjian, Paiste, Sabian, Meinl and other cymbal makers. They combine state-of-the-art cleaners with cutting edge formulation, resulting in unmatched performance and protection. It is fast in cutting through layers of dulling oxides and restoring a brilliant eye glaring polished shine. It even leaves behind an invisible protectant layer that reduces oxidation. This should not be used on traditional finishes unless you want them shiny. This product contains NO harsh caustic chemicals.