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Significance and Use
Quality standards for artists' paints require the evaluation of various appearance characteristics of paint films. Tinting strength determination (Test Method D4838) specifically requires the preparation of drawdowns for colorimetric measurement. Other evaluations such as color designation, transparency, gloss, and color difference measurements also require drawdown samples.
Artists' tube paints have a paste consistency that makes the use of traditional film application methods difficult, especially for drying oil paints.
Artists' paints vary in two properties important to the preparation of films, that is, transparency and drying time. Colorimetric determination and some other types of evaluation require paint specimens that completely hide the substrate. Very transparent paints require such a thick film to produce complete hiding that drying times is excessively long or the specimen surface is blemished. When complete hiding is necessary, this practice is designed to provide opaque films without these defects through application of a series of thin films.
1.1 This practice covers the production of uniform films of artists' tube paints and other nonflowing pigmented paints using paint applicators designed for less viscous paints.
1.2 Information on how to achieve opaque specimens from these paints is included.
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.
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
D4838 Test Method for Determining the Relative Tinting Strength of Chromatic Paints
E1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation
ICS Number Code 87.060.30 (Solvents)
UNSPSC Code 31211500(Paints and primers)
ASTM D4941-06(2010), Standard Practice for Preparing Drawdowns of Artists' Paste Paints, ASTM International, West Conshohocken, PA, 2010, www.astm.orgBack to Top