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ASTM D6686-01(2008)e2

Current Revision

Standard Test Method for Evaluation of Tannin Stain Resistance of Coatings

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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.

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.

SDO ASTM: ASTM International
Document Number D6686
Publication Date June 1, 2008
Language en - English
Page Count 3
Revision Level 01(2008)e2
Supercedes
Committee D01.42
Publish Date Document Id Type View
June 1, 2008 D6686-01R08E02 Revision
June 10, 2001 D6686-01 Revision
April 1, 2019 D6686-01R19 Reaffirmation
Feb. 1, 2013 D6686-01R13 Reaffirmation
June 1, 2008 D6686-01R08E01 Reaffirmation