With its self-healing properties, galvanized metal can also be an appropriate exterior material; that is if the client doesn’t mind the white powder that forms due to oxidation. Galvanized metal can be coated with a clear powder coat to reduce the oxidation. Sometimes, a project calls for a certain level of oxidation to give it a particular look or feel. Often this is the case when using COR-TEN® material or copper. These metals can be installed naturally and left to oxidize. Sealers or accelerators can also be applied to influence their appearance.