Oil pastel

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A soft pigmented, wax/oil-based drawing stick. Oil pastels contain a pigment or dye dispersed in a wax (such as paraffin or microcrystalline) base that is softened with a nondrying oil such as coconut oil or mineral oil. They may also contain tallow, stearic acid, and glycerol as well as fillers such as calcium carbonate. Oil pastels produce a soft, nondrying film that can be blended easily. They were first introduced as children's crayons in Japan in 1925.

Cray-Pas Expressionist oil pastels

Synonyms and Related Terms

pastel crayon; oil crayon; Cray-Pas® [Sakura]; craypas (sp); Sketchos [Prang]

Other Properties

Soluble in most petroleum and chlorinated hydrocarbons.

Hazards and Safety

Halos may form when used on absorbent material. Bloom may form on surface. Some colors are not lightfast.

Additional Information

° M.Holben Ellis, M.Brigitte Yeh, "Categories of Wax-based Drawing Media" WAAC Newsletter, Vol 19(3), 1997. ° M.H.Ellis, "Oil Pastel", in Media and Techniques of Works of Art on Paper, New York University Conservation Center of the Institute of Fine Arts, New York, 1999.

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