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"I would like to comment on \u201CCoating Plated Zinc Jewelry\u201D in your November column. We have been producing plated zinc die castings for 50 years and have been successfully applying clear e-coat to them for 12 years. We apply copper and nickel, followed by brass, bronze or gold, and then apply a 20-micron-thick clear e-coat and bake at 350\u00B0F for 40 min."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/coating-cast-zinc-jewelry>