A. Supercoat refers to a 2-part epoxy finish that is applied electro-statically and then baked onto the brass. Unlike former days when polished brass required extensive maintenance to avoid tarnishing or dulling of the finish, supercoat brass items need fairly little maintenance to retain their beautiful shine. Simply wipe your supercoat polished brass fixtures gently with a soft cloth after each use. Avoid the use of plumber's putty, detergents, or abrasive cleaners as these may cause deterioration of the coating.