Patinas can also be found in woks or other metal baking dishes, which form when properly seasoned. Moisture thus, the patina need special conditions to work as intended. This type of patina is formed by corrosion, what elements the air might hold, residue from the wear of the carbon brush and Patina is also found on slip rings and commutators. Sculptor Auguste Rodin used to instruct assistants at his studio to urinate over bronzes stored in the outside yard. Sometimes the surface is enhanced by waxing, oiling, or other types of lacquers or clear-coats. The metal surface with pigments added to the chemicals. Some patina colors are achieved by the mixing of colors from the reaction with For artworks, patination is often deliberately accelerated by applying chemicals with heat.Ĭolors range from matte sandstone yellow to deep blues, greens, whites, reds and various blacks. Liver of sulfur(brown-black), cupric nitrate(blue-green) and ferric nitrate(yellow-brown). The basic palette for patinas on copper alloys includes chemicals like ammonium sulfide(blue-black), Leads to green, while sulfur compounds (such as "liver of sulfur") tend to brown. ![]() For copper alloys, such as bronze, exposure to chlorides Patination composition varies with the reacted elements and these will determine the color of the patina. They are often used by artists as surface embellishments either for color, texture, Patina also refers to accumulated changes in surface texture andĬolour that result from normal use of an object such as a coin orĪrtists and metalworkers often deliberately add patinas as a part of the original design and decoration of art and furniture, or to simulate antiquity in newly-made objects.Ī wide range of chemicals, both household and commercial, can give a variety of patinas. ![]() Oxides or carbonates formed on the surface during exposure to the elements Metal Patina is a coating of various chemical compounds such as Patina "Part of art decoration" bronze patination
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