The patina on wood is often not a good thing, as it appears when it is affected by fungus or rot. The color, in this case, can be absolutely any – from light gold and white to black and may include shades completely untypical of natural material. This is a kind of imitation created with the help of conventional stains and paints – for example, acrylic. You can also distinguish the group of decorative patina.Such coatings are less durable and more porous than the noble film but protect the metal. Artificially made patina is formed much faster due to specific chemical reactions.It is necessary to get rid of such a film. The second – loose and from moisture metal will not protect. The first has a dense structure and protects the metal from corrosion (e.g., green patina on copper). It is divided into a noble patina and a wild patina. The natural patina appears during the oxidation of the metal in the atmosphere.It is obtained, of course, in other ways. As a result, an artificial patina was born. After all, through transitions of color, this noble patina emphasizes the beauty of the carvings and forges, volume texture, or indicates the object’s age, which unwittingly translates the living room furniture or other product into the category of rare or at least antique. Strangely enough, the presence of such a patina, if the coating does not affect the characteristics of the product and does not destroy it, not only is not destroyed but is often welcomed. In other cases, the process stretches for many years – as in the case of green patina on copper, silver patina (blackening), and so on. In some cases, the effect is speedy – for example, rusting of iron. To some extent, any material except gold and platinum interacts with oxygen and moisture in the air. Today, patina is also an aging effect, so fashionable when decorating furniture and kitchen utensils. Later, it also referred to a patina that appeared overtime on metal or wood surfaces. In its original meaning, patina meant an oxide film on a copper item of green (malachite) or bluish (azurite) color. Patina on Metals – Natural and Artificial.
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