Martinson, C. R. Corporate Engineering Department, Monsanto Company, St. Louis, Missouri.
Sisler, C. W. Corporate Engineering Department, Monsanto Company, St. Louis, Missouri.
Last reviewed:September 2019
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- White pigments
- Colored pigments
- Purple and violet
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A finely divided material which contributes to optical and other properties of paint, finishes, and coatings. Pigments are insoluble in the coating material, whereas dyes dissolve in and color the coating. Pigments are mechanically mixed with the coating and are deposited when the coating dries. Their physical properties generally are not changed by incorporation in and deposition from the vehicle. Pigments may be classified according to composition (inorganic or organic) or by source (natural or synthetic). However, the most useful classification is by color (see illustration) and by function. See also: Dye; Paint and coatings
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