By coating the freshly polished metal with lacquer, you should be able to keep shiny brass from tarnishing — until the lacquer wears off, at which time you can strip what remains and start over. … Polish off any remaining tarnish with the brass cleaner. Top with clear lacquer from a spray can; apply several layers.

Does brass need to be lacquered?

Do not use a brush with metal bristles because you can scratch the brass. This is especially important if you have plated brass, because scratching it will allow the metal beneath the plating to show through. Always work in a well-ventilated area and use protective breathing gear when working with lacquer solvent.

Does brass need to be coated?

Brass will automatically start to tarnish if exposed to oxygen. The only way to prevent polished brass from tarnishing is to coat it with a layer of clear sealer that will prevent air from reaching the brass itself. … Refresh the coating every few years to keep the brass shiny and like-new without frequent polishing.