Rabu, 15 Januari 2014

The Aged Beauty Of A Verdigris Patina

By Amanda Bean


Metal with a verdigris patina has an aged beauty that is unique. This protective layer of oxidation is formed over metal like copper, brass and bronze through the years as it is exposed to the air. Products have been developed today that can speed up this natural process. These chemical solutions are able to add patinas to surfaces quickly and efficiently.

Metals like copper and brass were used frequently in the past to create a variety of objects, from pipes to garden statues. All these objects show signs of weathering after years that is hard to imitate. The popularity of this aged finish has lead to many faux painting techniques being devised to recreate the look, some of which are fairly successful. However, the true finish can only be obtained by the oxidation of metals.

Faux painting techniques allow individuals to recreate the effect of aging. However, the true finish is hard to imitate and is only produced when metals are oxidized. This chemical process is accelerated in several different ways. Using a source of heat, like a blowtorch, can create an interesting mix of blue and green patinas. Distilled vinegar or acetic acid produces a pretty green color as copper acetate is formed.

The process of oxidation is an organic one and no two patinas look exactly alike. Variations occur in the chemical reaction according to conditions under which it takes place and the techniques used. This is part of the charm as each object looks different.

At different stages in the aging process, different colors are achieved. Using products available to accelerate aging, one can achieve the brown or green color, or anywhere in between. Copper becomes a lovely blueish-green color with age and bronze more of a blueish-black.

The required effect may need to be built up gradually, using several thin coats so as to exercise more control. Alternatively, a few thick coats can be used. One can experiment with different techniques and on different surfaces to see what interesting results can be obtained.

Various different applicators may be used to apply these products such as sponges, brushes, rags and sprayers. Trial applications are recommended. One can experiment with many different objects and surfaces. It is often better to use more thin coats than fewer thick coats as one has more control of the effect created.

It is always better to pour a small amount of the product into a disposable container. This means one never has to dip the applicator directly into the bottle. Using gloves or making sure that hands are thoroughly washed after application is also important. As long as the right precautions are taken, there are no risks involved in using these products.

A verdigris patina is extremely popular today. Objects are aged to provide a contrast with contemporary materials used, creating an eclectic look and introducing a sense of history and interest. Products are available at local and online stores that can help one create genuine patinas as quickly and efficiently as possible.




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