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Last Updated: Nov 07, 2012
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ASTM D4400-99(2012)
Standard Test Method for Sag Resistance of Paints Using a Multinotch Applicator
Standard Test Method for Sag Resistance of Paints Using a Multinotch Applicator
D4400-99R12
ASTM|D4400-99R12|en-US
Standard Test Method for Sag Resistance of Paints Using a Multinotch Applicator
Standard
D4400 Standard Test Method for Sag Resistance of Paints Using a Multinotch Applicator >
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Significance and Use
Evaluation of sag resistance is essential in quality control for both producers and purchasers of coatings. Practical application tests are poor in reproducibility, while viscometric methods, for example Test Methods D2196, are time-consuming and lack the convincing aspect of actual sagging. This method provides simple and rapid tests, whereby sag resistance is demonstrated by a visible sag pattern, and is rated objectively in terms of numerical values that correlate with brushout test observations.
Scope
1.1 This test method covers the laboratory determination of the sag resistance of aqueous and nonaqueous liquid coatings at any level of sag resistance.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.