Distemper is a decorative paint and a historical medium for painting pictures, and contrasted with tempera. The binder may be glues of vegetable or animal origin (excluding egg). Soft distemper is not abrasion resistant and may include binders such as chalk, ground pigments, and animal glue. Hard distemper is stronger and wear-resistant and can include casein or linseed oil as binders.
Distemper is an early form of whitewash, also used as a medium for artistic painting, usually made from powdered chalk or lime and size (a gelatinous substance). Alternatives to chalk include the toxic substance white lead.
Distempered surfaces can be easily marked and discoloured, and cannot be washed down, so distemper is best suited to temporary and interior decoration. The technique of painting on distempered surfaces blends watercolors with whiting and glue. "The colours are mixed with whitening, or finely-ground chalk, and tempered with size. The whitening makes them opaque and gives them 'body,' but is also the cause of their drying light ... a source of considerable embarrassment to the inexperienced eye is that the colours when wet present such a different appearance from what they do when dry."
Many Medieval and Renaissance painters used distemper painting rather than oil paint for some of their works. The earliest paintings on canvas were mostly in distemper, which was (and is) also widely used in Asia, especially in Tibetan thankas. Distemper paintings suffer more than oil paintings as they age, and relatively few have survived. It was the commonest medium for painting banners and decorations for temporary celebrations, both of which attracted artists of the highest quality, especially when they were official court artists. In distemper painting, "the carbonate of lime, or whitening employed as a basis, is less active than the pure lime of fresco ... to give adhesion to the tints and colours in distemper painting, and to make them keep their place, they are variously mixed with the size of glue (prepared commonly by dissolving about four ounces of glue in a gallon of water). Too much of the glue disposes the painting to crack and peel from the ground; while, with too little, it is friable and deficient in strength."
The National Gallery, London, distinguishes between the techniques of glue, glue size, or glue-tempera, which is how they describe their three Andrea Mantegnas in the medium, and distemper, which is how they describe their Dirk Bouts and two Édouard Vuillards (see below). Other sources would describe the Mantegnas as also being in distemper.
In modern practice, distemper painting is often employed for scenery painting in theatrical productions and other short-term applications, where it may be preferred to oil paint for reasons of economy. Contemporary artist John Connell was known for using distemper in paintings sometimes as large as ten feet.
Distemper was used extensively by German and Soviet forces for winter camouflage during World War II. Because ordinary camouflage patterns were worse than useless in the heavy snow conditions on the Eastern front, aircraft, tanks, and other military vehicles were hastily brush-painted with plain white distemper during the winter of 1941/1942. Because distemper is water-soluble, photographs showing winter camouflage often show it badly eroded.
During the invasion of Normandy on June 6, 1944, All Allied aircraft participating in the invasion were marked on the wings and fuselage with "invasion stripes" painted with distemper so that trigger-happy naval or ground-based gunners would not mistake them for German planes and fire on them as had happened during the invasion of Sicily in 1943.
Examples of paintings in distemper
- Fayum mummy portraits, from Late Antique Egypt (some in encaustic)
- Dirk Bouts Entombment, 1450s. National Gallery, London
- Many paintings by Mantegna
- The Raphael Cartoons, London
- Édouard Vuillard Lunch at Vasouy, 1901, Tate Modern.
- Mark Tobey's White Journey, modern
- Le Grand Teddy by Édouard Vuillard
- Distemper. In: Weyer, Angela; Roig Picazo, Pilar; Pop, Daniel; Cassar, JoAnn; Özköse, Aysun; Vallet, Jean-Marc; Srša, Ivan, eds. (2015). EwaGlos. European Illustrated Glossary Of Conservation Terms For Wall Paintings And Architectural Surfaces. English Definitions with translations into Bulgarian, Croatian, French, German, Hungarian, Italian, Polish, Romanian, Spanish and Turkish. Petersberg: Michael Imhof. p. 104. doi:10.5165/hawk-hhg/233.
- Vasari, Giorgio. Vasari on Technique. G. Baldwin Brown, ed., translated by Louisa S. Maclehose; London, J. M. Dent & Co., 1907; p. 242 n. 4.
- Merrifield, Mary P. The Art of Fresco Painting in the Middle Ages and the Renaissance. 1846; reprinted Mineola, NY, Courier Dover, 2003.
- Field, George. Chromatography, or A treatise on Colours and Pigments, and of Their Powers in Painting. London, Tilt and Bogue, 1841; pp. 337–8.
- ARTlines, April 1983
- "Conservation Information". Kimbell Art Museum. Archived from the original on 2006-10-01. Retrieved 2007-03-17.
Mantegna often used distemper, a glue-tempera medium, for small devotional pictures such as the Kimbell's painting.
- "Andrea Mantegna | The Introduction of the Cult of Cybele at Rome". National Gallery, London.
- "Edouard Vuillard | La Terrasse at Vasouy, The Garden". National Gallery, London.
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