A measure of the opacity of a paint or pigment. When expressed numerically, it is the number of square feet over which a gallon of paint, or pound of pigment, can be uniformly spread at a thickness that will provide a specified contrast ratio (ASTM). The contrast ratio is calculated from the colors measured when the paint is placed over both black and white backgrounds.
Synonyms and Related Terms
Deckkraft (Deut.); opacity; covering power
Sources Checked for Data in Record
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 608
- ASTM, "Standard Terminology Relating to Paint, Varnish, Lacquer and Related Products", Annual Book of ASTM Standards, Section 6, Paints, Related Coatings and Aromatics, ASTM, D16, 7-Jan, Jul-96