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ASTM D4585-07

(Practice)

Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation

Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation

SIGNIFICANCE AND USE
Water can cause degradation of coatings, so knowledge of how a coating resists water is helpful in predicting its service life. Failure in a condensation test may be caused by a number of factors including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation. The test is therefore useful for evaluating coatings alone or complete coating systems.
Condensation tests of coatings are used for specification acceptance, quality control, and research and development of coatings and substrate treatments. These tests usually result in a pass or fail determination but the degree of failure also may be measured. A coating system is considered to pass if there is no evidence of water-related failure after a specified period of time.
Results obtained from the use of condensation tests in accordance with this practice should not be represented as being equivalent to a period of exposure to water in the natural environment, until the degree of quantitative correlation has been established for the coating or coating system.
The test is usually conducted on metal, plastics, or wood specimens with the coating facing the inside of the chamber. However, it is possible to test the blister resistance of house paints on wood specimens by mounting the uncoated wood surface facing the inside of the chamber.
This practice can be used for corrosion tests particularly if the specimens are periodically dried. While corrosion products will drain into the water bath, they are not carried into the vapor that condenses on the test specimens.
SCOPE
1.1 This practice covers basic principles and operating procedures for testing water resistance of coatings using controlled condensation. Condensation is produced by exposing one surface of a coated specimen to a heated, saturated mixture of air and water vapor, while the reverse side of the specimen is exposed to the cooling effect of room temperature air. This practice is derived from research of the Cleveland Society for Coatings Technology.
1.2 This practice is limited to the methods of obtaining, measuring, and controlling conditions and procedures of controlled condensation tests. It does not specify specimen preparation, specific test conditions, or evaluation of results. Note 1 - Alternative practices for testing water resistance of coatings include Practices D 870, D 1735, and D 2247.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.

General Information

Status
Historical
Publication Date
31-May-2007
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.27 - Accelerated Testing
Current Stage
Ref Project

Relations

Replaces
ASTM D4585-99 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
Effective Date
01-Jun-2007
Replaced By
ASTM D4585/D4585M-13 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
Effective Date
01-Jun-2013
Referred By
ASTM D5324-16(2022) - Standard Guide for Testing Water-Borne Architectural Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D5367-16(2021) - Standard Practice for Evaluating Coatings Applied Over Surfaces Treated With Inhibitors Used to Prevent Flash Rusting of Steel When Water or Water/Abrasive Blasted
Effective Date
01-Jun-2007
Referred By
ASTM D6763-16(2022) - Standard Guide for Testing Exterior Wood Stains and Clear Water Repellents
Effective Date
01-Jun-2007
Referred By
ASTM D3794-22 - Standard Guide for Testing Coil Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D1735-21 - Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus
Effective Date
01-Jun-2007
Referred By
ASTM D3730-17(2022) - Standard Guide for Testing High-Performance Interior Architectural Wall Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D7072-04(2019) - Standard Practice for Evaluating Accelerated Efflorescence of Latex Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D5146-10(2019) - Standard Guide to Testing Solvent-Borne Architectural Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D2247-15(2020) - Standard Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity
Effective Date
01-Jun-2007
Referred By
ASTM D870-15(2020) - Standard Practice for Testing Water Resistance of Coatings Using Water Immersion
Effective Date
01-Jun-2007
Referred By
ASTM D6577-15(2019) - Standard Guide for Testing Industrial Protective Coatings
Effective Date
01-Jun-2007
Referred By
ASTM D7893-13(2018) - Standard Guide for Corrosion Test Panel Preparation, Testing, and Rating of Coil-Coated Building Products
Effective Date
01-Jun-2007
Referred By
ASTM D6686-01(2019) - Standard Test Method for Evaluation of Tannin Stain Resistance of Coatings
Effective Date
01-Jun-2007

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ASTM D4585-07 - Standard Practice for Testing Water Resistance of Coatings Using Controlled CondensationASTM D4585-07 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
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ASTM D4585-07 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D4585 − 07
StandardPractice for
Testing Water Resistance of Coatings Using Controlled
1
Condensation
This standard is issued under the fixed designation D4585; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Related Coating Products
D610 Practice for Evaluating Degree of Rusting on Painted
1.1 This practice covers basic principles and operating
Steel Surfaces
procedures for testing water resistance of coatings using
D714 Test Method for Evaluating Degree of Blistering of
controlled condensation. Condensation is produced by expos-
Paints
ing one surface of a coated specimen to a heated, saturated
D823 Practices for Producing Films of Uniform Thickness
mixture of air and water vapor, while the reverse side of the
of Paint, Varnish, and Related Products on Test Panels
specimen is exposed to the cooling effect of room temperature
D870 Practice for Testing Water Resistance of Coatings
air. This practice is derived from research of the Cleveland
2 Using Water Immersion
Society for Coatings Technology.
D1654 Test Method for Evaluation of Painted or Coated
1.2 This practice is limited to the methods of obtaining,
Specimens Subjected to Corrosive Environments
measuring, and controlling conditions and procedures of con-
D1730 Practices for Preparation of Aluminum and
trolled condensation tests. It does not specify specimen
Aluminum-Alloy Surfaces for Painting
preparation, specific test conditions, or evaluation of results.
D1735 Practice for Testing Water Resistance of Coatings
Using Water Fog Apparatus
NOTE 1—Alternative practices for testing water resistance of coatings
include Practices D870, D1735, and D2247. D2247 Practice for Testing Water Resistance of Coatings in
100 % Relative Humidity
1.3 The values stated in SI units are to be regarded as the
D2616 Test Method for Evaluation of Visual Color Differ-
standard. The values given in parentheses are for information
ence With a Gray Scale
only.
D3359 Test Methods for Measuring Adhesion by Tape Test
1.4 This standard does not purport to address all of the
D3363 Test Method for Film Hardness by Pencil Test
safety concerns, if any, associated with its use. It is the
D4541 Test Method for Pull-Off Strength of Coatings Using
responsibility of the user of this standard to establish appro-
Portable Adhesion Testers
priate safety and health practices and determine the applica-
G154 Practice for Operating Fluorescent Ultraviolet (UV)
bility of regulatory limitations prior to use.
Lamp Apparatus for Exposure of Nonmetallic Materials
2. Referenced Documents
3. Summary of Practice
3
2.1 ASTM Standards:
3.1 Watervaporisgeneratedbyheatingapanofwateratthe
D609 Practice for Preparation of Cold-Rolled Steel Panels
bottom of the test chamber. The specimens form the roof or
for Testing Paint, Varnish, Conversion Coatings, and
walls of the test chamber so that the back sides of the
specimens are exposed to the cooling effects of room tempera-
tureair.Theresultingheattransfercausesvaportocondenseon
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
the test specimens as liquid water saturated with air.
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
3.2 The temperature and amount of condensate forming on
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
the specimens is controlled by the test temperature and the
in 1986. Last previous edition approved in 1999 as D4585 – 99. DOI: 10.1520/
room temperature. The test specimens are inclined so that
D4585-07.
2
Foecking, N. J., “Cleveland Condensing Type Humidity Cabinet,” Offıcial
condensate runs off the test surface by gravity and is replaced
Digest, December 1963, Vol 35, No. 467, pp. 1318–1327; and Higgins, W. A.,
by fresh condensate in a continuous process during the
“Cleveland Condensing Type Humidity Cabinet: II,” Offıcial Digest, November
condensate cycle.
1965, Vol 37, No. 490, pp. 1392–1404.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.3 Exposure conditions are varied by selecting: (a) the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
temperature of the test, (b) the duration of the test, and (c)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. periodic drying of the specimens. Testing may be conducted at
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.
...

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