Patina is a thin layer that forms on the surface of metal due to exposure to various elements such as air, moisture, and chemicals. It results from a series of chemical reactions between the metal and its environment. In the context of metal finishing, patination is intentionally induced using different techniques and chemicals to achieve desired colors and textures.The allure of patina metal finish lies in its unique aesthetic appeal and the protective layer it provides to the underlying metal. Not only does it add character and depth to metalwork, but it also enhances its durability, making it resistant to corrosion and wear.