Flitz BC 01806 Instant Brass and Copper Tarnish Remover, 16-Ounce, Small Natural organic salts formula instantly removes heavy tarnish without rubbing Works great on heavy tarnish, rust and corrosion, calcium deposits and stains, heavy oxidation, water spots and stains Use indoors or out Safe on glass, aluminum, painted surfaces, fiberglass, stucco, brick, porcelain, brass and copper Not for chrome or patina finishes