Viscosity is the thickness of a liquid. Low-viscosity liquids are very fluid (such as water) while high-viscosity liquids are quite thick (such as molasses). The viscosity of oil paints is usually reduced by adding binder (such as linseed oil) and/or solvent (such as turpentine). At a lower viscosity, paint can be brushed onto the canvas more freely and quickly.
Abstract Expressionist New York
The Museum of Modern Art, October 3, 2010–April 11, 2011
Filmed by Plowshares Media
© 2010 The Museum of Modern Art
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