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Significance and Use
5.1 Laboratory hiding power measurements of architectural coatings generally employ blade-type applicators that lay down films of highly uniform thickness. But practical applicators, such as rollers, pads, and brushes, typically apply films that lack uniformity due to incomplete leveling, resulting in the practical hiding power of most paints being less than that measured on films applied with a drawdown blade. This test method simulates practical application procedures and conditions so as to provide an indication of the actual hiding performance obtainable when a paint is applied by an experienced worker. It is not intended to duplicate painting as done by the average consumer.
5.2 Since the rheological characteristics of a paint and its interaction with the applicator are influencing factors, rank order correlation between this test and one done by drawdown might not be obtained.
1.1 This test method measures the ability of a paint to hide or obscure a surface to which it has been applied by a practical application procedure. This test method covers the use of a paint roller, but the concept is expected to work equally well when the application tool is a paint brush or paint pad.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D16 Terminology for Paint, Related Coatings, Materials, and Applications
D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
D3925 Practice for Sampling Liquid Paints and Related Pigmented Coatings
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
ICS Number Code 87.040 (Paints and varnishes)
UNSPSC Code 31211500(Paints and primers)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D5150-92(2013), Standard Test Method for Hiding Power of Architectural Paints Applied by Roller, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top