Clay to Collector – The Bronze Casting Process
Master Patineur Dale Cisek applies chemicals to the bronze, which has been heated with a torch to create a permanent color change called patina. The patineur and I decide between two sealants to protect the patina. The traditional method of protection is to apply several thin coats of clear paste wax to the surface, which is then lightly buffed with a soft, clean, pure cotton cloth. This patina should last indefinitely indoors. However, if persons repeatedly touch certain areas, bronze may be expected to eventually shine through. Because today’s outdoor atmosphere is more corrosive and carries a higher content of manmade pollutants, a more durable, lacquer metal protector is recommended. G.J. Nikolas & Co., Inc. manufactures lacquer sealants designed specifically for copper and its alloys. These lacquers produce a plastic-looking, high-gloss finish. Therefore, the sculpture is waxed to create the soft look of a traditional patina.
No. 41
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