Patina refers to the layer of oxidation that develops on metal surfaces over time, typically resulting from exposure to air and moisture. This natural process creates a unique, aged appearance that many find aesthetically pleasing. In the world of design and architecture, patina finishes are intentionally applied to metal surfaces to achieve a desired look that blends antique charm with modern sophistication.

Patina can range in color from rich greens and blues to deep browns and grays, depending on the metal and the chemicals used in the finishing process. This variability makes patina a versatile choice for enhancing the visual appeal of various elements.