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Nautica 3rx patina green5/19/2023 ![]() ![]() The most commonly used darkening solution is liver of sulfur (potassium sulfide). Metal being colored often has to be thoroughly degreased with the hazards attendant on degreasing methods and exposure to alkalis, acids and solvents. Burns from hot surfaces or splashes of chemicals in the eyes. Electric hazards are present if powered equipment is used and gas handling ones if torches are brought into play. If you are using patinas, you should make sure they are properly sealed when finished (I like to use transparent automotive enamel) and do not come in contact with food or skin for instance, if making earrings, ensure that the surfaces against the skin are not patinated. Any green or blue patination likely contains copper or nickel salts which are toxic and irritant. Vinegar fuming will produce different copper salts. These colors include copper hydroxides and copper chlorides, both dangerous for skin contact and if inhaled (as dry particles). Fuming copper with ammonia, for instance, is a low-toxicity approach to obtaining blues and greens. Skin contact with patination solutions may cause dermatitis or in some rare cases, poisonings. Metal coloring solutions are often made up of chemicals in toxic concentrations, so all chemical-lab precautions need to be taken with them. Paints, epoxy resins and other materials are also used to darken recesses on work. ![]() There are also metal dyes which are very adhesive. We usually think of patinas as being green, but they come in many colors. Metalsmiths patinate both large and small objects, as well as jewelry. Jewelers use so-called "oxidising" solutions to darken metals like silver, copper, brass, nickel silver, bronze and, with specialized mixtures, on gold. ![]() Send us feedback about these examples.By Charles Lewton-Brain More from this author These examples are programmatically compiled from various online sources to illustrate current usage of the word 'patina.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Savanna Bous, Better Homes & Gardens, 30 Nov. 2023 Keep the design simple with traditional Christmas colors and plenty of warm white furnishings with a pretty patina. 2023 This ring is silver topped and 18K rose-gold bottom with soulful patina. 2023 The stylish exterior is made of full-grain cowhide Colombian leather, which develops a gorgeous patina with age, while the interior fabric is tear-resistant and meant to last. 2023 At its heart is a three-door version of the SUV-which Mercedes doesn’t sell, unfortunately-with a visible patina. Alyssa Longobucco, House Beautiful, 22 Feb. 2022 Will develop a patina over time and may show wear and tear from cutlery, dishes, and more. Vinson Cunningham, The New Yorker, 4 Apr. 2022 They’re all set in Room 719, where the crown molding is sharp, the wood trimmings shine, and the gold patina on the curtains shimmers gently. Michael Andor Brodeur, Washington Post, 20 Sep. 2023 Anthems tend to carry within their textures a rich whiff of the past, the patina and efficiency of old war footage, the hiss and crackle of the newsreel. Deborah Needleman, Travel + Leisure, 16 Mar. Recent Examples on the Web Sheets of scrap metal are beaten by hand to be shaped and joined without welding, then coated with a mixture of copper and mud paste and fired in a kiln to produce the characteristic patina.
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