Copal Art
Feb 07, 2008 at 20:08 | Source: CNBC-TV18
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Technical art history has made some fascinating discoveries, such as the use of a cooked starch gel by Rembrandt. I've learned the value of making good notes. And many tests. At first I made the hard resin varnishes: copal, amber, and sandarac. But ...
May 22, 2012 at 09:33 | Source: Huffington Post







