In common parlance, weathering rust on steel is often mistakenly referred to as patina. On metal, patina is a coating of various chemical compounds such as oxides, carbonates, sulfides, or sulfates formed on the surface during exposure to atmospheric elements ( oxygen, rain, acid rain, carbon dioxide, sulfur-bearing compounds). They may also be aesthetically appealing. Patinas can provide a protective covering to materials that would otherwise be damaged by corrosion or weathering. The patinas on leather goods are unique to the type of leather, frequency of use, and exposure. Patina ( / p ə ˈ t iː n ə/ or / ˈ p æ t ɪ n ə/) is a thin layer that variously forms on the surface of copper, brass, bronze and similar metals and metal alloys ( tarnish produced by oxidation or other chemical processes) or certain stones and wooden furniture (sheen produced by age, wear, and polishing), or any similar acquired change of a surface through age and exposure.Īdditionally, the term is used to describe the aging of high-quality leather. The external layer has been weathered by moisture and rain, leading to the oxidation of copper. Pre-colonial copper coin formerly used in the Copper Belt ( Democratic Republic of the Congo and Zambia). The church was destroyed during the bombing of Dresden in 1945 and then rebuilt from 1993 to 2005 with new material the stones with the black patina are the parts that survived the firebombing from the original 18th-century church. Copper roof on the Minneapolis City Hall, coated with patina The Dresden Frauenkirche. For the United States Navy ship, see USS Pattina (SP-675). It is always advisable to test JAX Green Patina in a small inconspicuous area to make sure that it does not adversely affect or damage the surface being treated.įor a more authentic look, first apply a JAX Darkener to the metal before applying the JAX Green Patina.ĭo NOT apply JAX Green Patina to hot metal or roofs ? the chemicals will simply evaporate and have little or no effect.For the village in Estonia, see Pattina. Do not mix JAX Products with any other chemicals. Make sure to refer to the Safety Data Sheets for additional information before you begin. When you dispose of used products and containers, please do so in at an approved waste disposal facility. Contaminating the original container will seriously reduce the shelf-life of the product.Īlways use JAX Products in plastic or glass containers. Always store JAX products at room temperature, in tightly closed original containers AND in a locked, safe place. JAX products never expire, however, they can deteriorate over time if not cared for properly. Once you are happy with your finish, you may wax, oil, or lacquer the metal as a final step, although in many cases leaving the metal ?unprotected? may be desirable. We do NOT recommend applying JAX Green Patina by dipping your metal into JAX Green Patina. Unlike the JAX Blackeners and Darkeners, the JAX Green Patina does NOT work instantaneously. Brush the patina onto the metal until a dull film appears.? The appearance of the film indicates that the patina has adhered to, and is reacting on the metal.? Additional coats may be applied.? Allow each coat to thoroughly air-dry (24 hours) between coats is recommended. Use a stiff bristle brush and apply the JAX Green Patina directly to the metal. To be safe, eye protection is always recommended. Wearing gloves is highly recommended as to not introduce oils from your hands to the metal. Regardless of what you use to clean your metal, we recommend using Dawn Dishwashing Liquid as the final step before applying the JAX Green Patina. Your choice of cleaner depends on what you are trying to remove from your metal. JAX manufactures metal cleaners that are optimal for prepping your metal, but there is no one cleaner that will guarantee perfection. To ensure the best results, clean your metal of all lacquer, oil, grease and wax. Prepare and clean the surface to be treated.JAX Green Patina for Brass, Bronze and Copper
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