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Description of ASTM-D6686 2013ASTM D6686 - 01(2013)Standard Test Method for Evaluation of Tannin Stain Resistance of CoatingsActive Standard ASTM D6686 | Developed by Subcommittee: D01.42 Book of Standards Volume: 06.02 ASTM D6686Significance and Use 5.1 Tannins and other chromophoric extractives are naturally occurring materials in wood and wood-based substrates. Tannins are prevalent to a high degree in cedar, redwood, oak and to a lesser degree in white and yellow pine. Tannins are also present in varying amounts in wood composition products. These extractives are solubilized and darkened in color by aqueous coatings, resulting in unsightly yellow or brown discolorations. This test method is designed to show the relative ability of paints to prevent tannin bleed-through. Typically cedar or redwood panels are used for this test. 1. Scope 1.1 This test method is an accelerated procedure to determine the effectiveness of latex coatings at preventing the migration of tannin stains from wood substrates. 1.2 The values in SI units are to be regarded as the standard. The values in parenthesis 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.
ASTM Standards D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products D4585 Practice for Testing Water Resistance of Coatings Using Controlled Condensation D5068 Practice for Preparation of Paint Brushes for Evaluation Keywords stain blocking; tannin stain; wood extractives; wood stain; ICS Code ICS Number Code 19.040 (Environmental testing); 25.220.01 (Surface treatment and coating in general) DOI: 10.1520/D6686-01R13 ASTM International is a member of CrossRef. ASTM D6686This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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