1. Scope

1.1 This practice covers the basic principles and operating procedures for testing water resistance of coatings by exposing coated specimens in an atmosphere maintained at 100 % relative humidity so that condensation forms on the test specimens.

1.2 This practice is limited to the methods of obtaining, measuring, and controlling the conditions and procedures of tests conducted in 100 % relative humidity. It does not specify specimen preparation, specific test conditions, or evaluation of results.

Note 1Alternative practices for testing the water resistance of coatings include Practices D 870, D 1735, and D 4585.

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.

ASTM Standards

D609 Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products

D610 Practice for Evaluating Degree of Rusting on Painted Steel Surfaces

D714 Test Method for Evaluating Degree of Blistering of Paints

D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels

D870 Practice for Testing Water Resistance of Coatings Using Water Immersion

D1193 Specification for Reagent Water

D1654 Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

D1730 Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting

D1735 Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus

D2616 Test Method for Evaluation of Visual Color Difference With a Gray Scale

D3359 Test Methods for Measuring Adhesion by Tape Test

D3363 Test Method for Film Hardness by Pencil Test

D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers

D4585 Practice for Testing Water Resistance of Coatings Using Controlled Condensation

Keywords

adhesion; blistering; humidity; resistance-water; rust; Blistering; Adhesion--paints/related coatings/materials; Coatings (paint/related applications); Exposure tests--organic coatings; Exterior coatings; Industrial coatings/applications; Interior paints/coatings; Latex paints; Relative humidity (RH); Rust; Solventborne paints/coatings; Varnishes; Water resistance;

ICS Code

ICS Number Code 87.040 (Paints and varnishes)

DOI: 10.1520/D2247-02

ASTM International is a member of CrossRef.