“Patina” is a word describing the oxidization layer which builds up on metal surfaces. Materials like copper and statuary bronze are well known for developing dark browns and greens on their surfaces.
A lesser known but aesthetically rich material for patination is zinc. Zinc can also be chemically patinated to develop protective patina coatings in a wide range of color. This is patinated zinc, and it can be developed to create a range of aesthetics.
Zahner has produced a number of projects using custom zinc patina processes. These patinated surfaces are produced in an EPA-certified facility which has won awards for its sustainable practices. This is important for patination because chemical disposal will otherwise damage the city water tables. Patinated materials are also sustainable because the patination is produced on a highly recyclable material. Zinc and copper alloys are produced with a high amount of post-consumer product.
The pictured patination processes show a wide range of possibilities on the zinc sheets. The above samples were produced in small runs for private clients, and are not offered as a standard finish. Although these materials above are not offered in sample form, Zahner does offer a number of patinated products which have samples available for shipment.