Piano accumulated dust
As you clean an area of the finish with detergent solution, immediately wipe away moisture and detergent residues with a dry, clean soft cloth to prevent streaks, much as you might if you wash windows. Should you need to clean a polymer finish, a very dilute solution of a mild detergent in clean water will work fine. Microfiber cloths are well-suited piano for sale for this, though any clean, soft cloth that you might use for dusting fine furniture will work. Indeed, unless they become particularly dirty or fingerprinted, about the only care necessary is to wipe accumulated dust from them regularly. Polymer finishes need not be waxed or polished.
