Copper Finishes – From Naturally Weathering to Lead

Online Article

Copper and its principal architectural alloys are relatively active metals which, when left unprotected, tend to oxidize (weather). Long-term atmospheric exposure generally results in the formation of the naturally protective gray-green patina. Because copper and its alloys afford a broad spectrum of both natural and weathered colors, much effort is expended to either hasten the natural weathering by chemical means, or preserve the bright natural colos through the application of clear protective coatings. This article, posted on the Copper Development Association (CDA) website, takes a look at not only natural weathering, chemical coloring and clear coatings, but also opaque coatings and lead coatings on copper. The article includes photographic representations and a natural weathering chart.

To read this article, click Copper Finishes Article.

To learn more about copper in architecture and the CDA, visit www.copper.org.

To see a list and learn about the educational materials available for purchase through the CDA, click Copper Publications.

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