Stainless steel surfaces exposed to the environment or aggressive substances should be cleaned periodically using a mild household cleaner. Regular cleaning maintains the neat appearance of stainless steel and reduces the risk of corrosion. All cleaning agents must be free of hydrochloric and hydrofluoric acid. Stainless steel surfaces develop a sheen when treated with a chrome-polishing agent.
Oxidation films on exposed solid brass can be removed by using a conventional polishing agent, but will form again.
In the case of anodized aluminum and tuscan color-coated aluminum do not use abrasive cleaning agents. Damage to the anodized layer can be repaired by applying varnish.