How to Oil Brass

Clean any brass surface, prior to oiling or polishing, with a small amount of mild liquid dish washing soap mixed with warm water. Dip a cotton rag in the solution and wash the brass. Use a small, soft-bristled toothbrush to get into cracks, crevices and any detailing. Rinse thoroughly with warm water and dry with a soft cloth.

Lubricate brass musical instruments with specially made valve oil on a regular basis to ensure proper function. Inspect the instrument valves daily, and then apply the valve oil by unscrewing the valve cap approximately halfway and applying a drop of oil to the wide part of the valve. Push the valve cap back in place. Make sure the valve is properly seated by turning slightly until you hear a “click.”

Polish brass nautical equipment with an oil or lacquer that will also seal it from exposure to air and moisture. Linseed oil is often used as a base for the most common polishes made for this type of equipment. Soak a cotton rag or sponge in the polish for several hours or overnight, and apply it to the equipment using circular rubbing motions. Remove any excess with a soft rag and let dry.

Polish household brass with a commercial product. Or make your own by mixing the juice of half a lemon with either table salt or baking soda to the consistency of paste, in a small bowl. Using a soft cotton cloth, apply the paste to the brass in a circular motion. Once complete, rinse the piece thoroughly and inspect for any missed spots. Repeat the process, if necessary. Dry thoroughly with a soft cotton cloth.