The term oxidation is used to describe reactions in which metals react with oxygen in air to produce metal oxides. For example, when iron is exposed to air in the presence of water, the iron turns to rust. This is called iron oxide.
Oxidation is a decorative finish which makes a surface look like it has corroded and aged. This unique finish draws a line between tradition and innovation, by being able to speed up a usually, natural process.
These looks are created by exposing elements within the product to natural corrosion. Oxidation can be used both internally and externally.