Brass sinks can give long lasting service and beauty to your bar if handled and maintained properly. Brass and copper are durable materials, however, they are soft and can be scratched, scuffed and dented fairly easily. Keep that in mind when bringing glasses, utensils and cleaning materials into contact with the sink.
For ordinary cleaning, use nothing but a soft, clean cloth and mild dish detergent followed by a thorough clear water rinse. Wipe dry with a clean, soft cloth.
Stains and tarnish should be removed with a small amount of good quality brass cleaner. Rub lightly to lift the discoloration, let dry, then polish with a soft, clean, dry cloth.
Minor surface scuff and very light scratches can be removed with fine automotive rubbing compound followed by brass polish.
Deeper scratches may require wet sanding with "wet or dry" sandpaper followed by rubbing compound, finishing with brass polish. The severity of the scratch determines the coarseness of the sandpaper grit with which to start. For very deep scratches we suggest starting with 220 grit followed by grits of 320, 400 and 600 progressively. In all cases use the finest grit that will work to remove the scratch.
We do not recommend any paint-type coatings be applied to the sink, as the coating will eventually wear through, leaving you with two dissimilar surface materials to maintain - neither of which complements the other.
A bare brass or copper sink can always be brought back to a bright mirror polish with readily available materials (and elbow grease), even if it becomes badly scratched and tarnished.