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Significance and Use
4.1 Laboratory measurement of application properties of architectural coatings generally employ a blade-type applicators that lay down films of highly uniform thickness. Applicators, such as brushes and rollers, typically apply films that lack uniformity due to variations in rheology, film build, flow and leveling properties resulting in the practical hiding of most paints being less than that measured on films applied with a blade-type applicator. This guide provides an indication of the actual application properties of the paint, as applied by a contractor or consumer.
1.2 Because both the application and panel evaluation are subjective, this guide should be used only for comparative testing within one laboratory using one operator for each set of applications, as the ratings assigned by different laboratories may not agree.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products
D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
D3925 Practice for Sampling Liquid Paints and Related Pigmented Coatings
D4707 Test Method for Measuring Paint Spatter Resistance During Roller Application
D5068 Practice for Preparation of Paint Brushes for Evaluation
D5069 Practice for Preparation of Paint-Roller Covers for Evaluation of Architectural Coatings
D5301 Practice for Physical Characterization of Paint Brushes
D5913 Test Method for Evaluation of Cleanability of Paint Brushes
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
Other DocumentPictorialStandardsof shown in the Pictorials Standards of Coating Defects Available from Federation of Societies for Coatings Technology (FSCT), 492 Norristown Rd., Blue Bell, PA 19422-2350, http://www.coatingstech.org.
ICS Number Code 87.020 (Paint coating processes)
UNSPSC Code 31211500(Paints and primers)