how to copper patina

 

About Patina

Patina is a chemical process that alters the surface of a metal leaving a colored compound adhered to the metal.

Patinas form on metal from exposure to the elements, or are deliberately added by artists and metalworkers. Patinas may be used to 'antique' objects, as a part of the design or decoration of art and furniture.

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Leaf With Tendril

See oil paintings on copper – Richard Hawk Studio
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The most striking of patinas is a green or blue green surface created by slow chemical alteration of copper, producing a basic carbonate. It can form on pure copper objects as well as alloys which contain copper, such as bronze or brass.

Patination varies with the reacted elements and will determine the color of metal patinathe patina. Exposure to chlorides leads to green and blue, while sulfur compounds tend to brown.

Perhaps the best known example of patina in the United States is the bluish-green colored coating on the Statue of Liberty in New York Harbor, which is made of copper sheets 3/32 of an inch thick, roughly the same as two pennies put together, over an iron framework. The copper has naturally oxidized to form its familiar patina green coating.

At COPPERHAND we apply our own patina compounds in the studio to create color, texture and pattern, in concert with our unique ways of realizing designs using negative space.

Want more information on patinas and how to create them? Click on the links below.

Copper and Patina Links

COPPERHAND STUDIO • COPPER PATINA ART