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D4062 Standard Test Method for Leveling of Paints by Draw-Down Method

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Revision Date: May 05, 2011
Updated On: May 09, 2011
Editorial Change:
 
Leveling can affect the hiding and appearance of applied architectural coatings, the presence of brushmarks and surface irregularities being more conspicuous with gloss and semi-gloss finishes than with flat finishes. Instrumental evaluations of leveling by this test method have been shown to correlate with those made by brush application.

1.1 This test method covers the laboratory determination of the relative leveling of water and solvent-reducible architectural paints in white and light tints by comparing the ridges produced in a draw-down film to a series of plastic leveling standards.

1.2 Unpigmented, texture, and deep-tint coatings cannot be readily evaluated with the shadowing produced by oblique lighting employed in this test method. Such coatings may be rated by comparing them with the plastic standards at various angles of reflection. For this purpose ordinary room lighting is satisfactory.

1.3 Since other factors may influence the tendency of liquid paints to sag, this test method is not intended to measure sagging.

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