ASTM-D5007 › Historical Revision Information
Standard Test Method for Wet-to-Dry Hiding Change
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Scope
1.1 This test method covers the determination of the change in hiding power of an architectural coating during drying, by visual evaluation of the wet and dry film.
1.2 This test method is not recommended for colors other than white and tints.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Significance and Use
5.1 Many architectural paints, particularly white and light tints, change significantly in film opacity as they dry. An increase in hiding is sometimes associated with porosity and poor film integrity with conventionally formulated coatings. A decrease can result in a disappointing paint job. The wet-to-dry hiding change is therefore a property of great practical importance.
5.2 This test method can be used in paint specifications and as a short, simple procedure for evaluation and quality control.
Keywords
hiding power; wet-to-dry hiding change;; ICS Number Code 87.040 (Paints and varnishes)
To find similar documents by ASTM Volume:
06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)
To find similar documents by classification:
87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)
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Document Number
ASTM-D5007-99(2017)
Revision Level
1999 R17 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
June 15, 2017
Document Type
Test Method
Page Count
5 pages
Committee Number
D01.42