The process of artificially aging copper to develop a layer of oxidation, typically green or brown, is a surface treatment technique employed to enhance aesthetic appeal and, in some cases, provide a degree of protection against further corrosion. This technique mimics the natural oxidation that occurs over extended periods of environmental exposure. Examples of this process can be observed in architectural elements, decorative art, and functional objects.
This controlled oxidation offers several advantages. Beyond the visual appeal of an antique or weathered appearance, a properly developed oxidation layer can provide a barrier against atmospheric corrosion, extending the lifespan of the underlying copper. Historically, this surface treatment has been used to impart a sense of age and authenticity to newly crafted items, bridging the gap between modern production and classical design.
