encaustic is a method of painting in which colored pigment is mixed with
Encaustic painting Encaustic painting, also known as hot wax painting, involves using heated beeswax to which colored pigments are added. The liquid or paste is then applied to a surface—usually prepared wood, though canvas and other materials are often used. The simplest encaustic mixture can be made from adding pigments to beeswax, but there are several other recipes that can be used—some containing other types of waxes, damar resin, linseed oil, or other ingredients. Pure, powdered pigments can be used, though some mixtures use oil paints or other forms of pigment.[1]
Edgar Degas By the later 1870s Degas had mastered not only the traditional medium of oil on canvas, but pastel as well. The dry medium, which he applied in complex layers and textures, enabled him more easily to reconcile his facility for line with a growing interest in expressive color.