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Scope

1.1 This test method evaluates the effectiveness of clear water repellent coatings on wood before or after exterior exposure.

1.2 Intralaboratory results with this test method can be used to compare the effectiveness of clear water repellent coatings. The agreement between results obtained in different laboratories may be less satisfactory unless a known water repellent is used as a reference.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety problems, 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.

Significance and Use

Water is known to penetrate wood substrates, causing dimensional instability and eventual deterioration. Clear water repellent coatings are designed to protect wood from damaging effects of water. This test method is used to evaluate the effectiveness of water repellent coatings on wood soon after application or after long-term exterior exposure.

Keywords

architectural paints and coatings; water repellents; Penetration--wood materials/applications; Architectural paints/coatings; Water absorption; Water repellent coatings; Wood-based materials/applications; Wood products; ICS Number Code 79.040 (Wood, sawlogs and sawn timber)

To find similar documents by ASTM Volume:

06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)

To find similar documents by classification:

71.100.50 (Wood-protecting chemicals)

79.040 (Wood, sawlogs and sawn timber)

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