The Encaustic painting reference article from the English Wikipedia on 24-Jul-2004
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Encaustic painting

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Encaustic painting, also called "hot wax painting", involves using heated beeswax to which colored pigments are added. The liquid/paste is then applied to a surface - usually prepared wood, though also canvas and other materials. Metal tools are used to shape the paint before it cools; also special brushes. This technique was notably used in the Fayum mummy portraits from Eygpt around A.D. 100-300, as well as in many works of the 20th century American artist, Jasper Johns.

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