High Quality Content by WIKIPEDIA articles! Gesso (Italian: "chalk," from the Latin gypsum, from the Greek ) is a white paint mixture consisting of a binder mixed with chalk, gypsum, pigment, or any combination of these. It is used in artwork as a preparation for any number of substrates such as wood panels, canvas and sculpture as a base for paint and other materials that are applied over it. "Gesso", also known "glue gesso" or "Italian gesso" is a traditional mix of an animal glue binder, usually rabbit-skin glue, chalk, and white pigment, to use as an absorbent primer coat for panel painting with tempera paints. It is also used as a base on three dimensional surfaces for the application of paint or gold leaf. Mixing and applying it is an art form in itself since it is usually applied extremely thin in 10 layers or more. It is a permanent and brilliant white substrate, used on wood, masonite and other surfaces. The standard hide glue mixture is rather brittle and susceptible to cracking, thus making it suitable only for rigid surfaces. For priming flexible canvas a emulsion of gesso and linseed oil, also called a "half-chalk ground", is used.

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