ASTM D1735-02

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

SCOPE
1.1 This practice covers the basic principles and operating procedures for testing water resistance of coatings in an apparatus similar to that used for salt spray testing.
1.2 This practice is limited to the methods of obtaining, measuring, and controlling the conditions and procedures of water fog tests. It does not specify specimen preparation, specific test conditions, or evaluation of results.
Note 1—Alternative practices for testing the water resistance of coatings include Practices D 870, D 2247, 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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Aug-2002
• ICS: 25.220.20 - Surface treatment
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.27 - Accelerated Testing

Relations

• Replaces: ASTM D1735-99 - Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus
• Effective Date: 10-Aug-2002
• Replaced By: ASTM D1735-04 - Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus
• Effective Date: 01-Nov-2004
• Referred By: ASTM D4585/D4585M-18 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
• Effective Date: 10-Aug-2002
• Referred By: ASTM D7893-13(2018) - Standard Guide for Corrosion Test Panel Preparation, Testing, and Rating of Coil-Coated Building Products
• Effective Date: 10-Aug-2002
• Referred By: ASTM D2247-15(2020) - Standard Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity
• Effective Date: 10-Aug-2002
• Referred By: ASTM D3794-22 - Standard Guide for Testing Coil Coatings
• Effective Date: 10-Aug-2002
• Referred By: ASTM D7270-07(2021) - Standard Guide for Environmental and Performance Verification of Factory-Applied Liquid Coatings
• Effective Date: 10-Aug-2002
• Referred By: ASTM D1654-08(2016)e1 - Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
• Effective Date: 10-Aug-2002
• Referred By: ASTM D333-01(2021) - Standard Guide for Clear and Pigmented Lacquers
• Effective Date: 10-Aug-2002
• Referred By: ASTM C635/C635M-22 - Standard Specification for Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings
• Effective Date: 10-Aug-2002
• Referred By: ASTM D6577-15(2019) - Standard Guide for Testing Industrial Protective Coatings
• Effective Date: 10-Aug-2002
• Referred By: ASTM D870-15(2020) - Standard Practice for Testing Water Resistance of Coatings Using Water Immersion
• Effective Date: 10-Aug-2002
• Referred By: ASTM D3451-06(2017) - Standard Guide for Testing Coating Powders and Powder Coatings
• Effective Date: 10-Aug-2002
• Referred By: ASTM D3322-23 - Standard Practice for Testing Primers and Primer Surfacers Over Preformed Metal
• Effective Date: 10-Aug-2002

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:D1735–02
Standard Practice for
Testing Water Resistance of Coatings Using Water Fog
1
Apparatus
This standard is issued under the fixed designation D 1735; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
5
1. Scope D 1193 Specification for Reagent Water
D 1654 Test Method for Evaluation of Painted or Coated
1.1 This practice covers the basic principles and operating
3
Specimens Subjected to Corrosive Environments
procedures for testing water resistance of coatings in an
D 1730 Practices for Preparation of Aluminum and
apparatus similar to that used for salt spray testing.
6
Aluminum-Alloy Surfaces for Painting
1.2 This practice is limited to the methods of obtaining,
D 2247 PracticeforTestingWaterResistanceofCoatingsin
measuring, and controlling the conditions and procedures of
3
100 % Relative Humidity
water fog tests. It does not specify specimen preparation,
D 2616 Test Method for Evaluation of Visual Color Differ-
specific test conditions, or evaluation of results.
3
ence With a Gray Scale
NOTE 1—Alternative practices for testing the water resistance of
D 3359 Test Methods for Measuring Adhesion by Tape
coatings include Practices D 870, D 2247, and D 4585.
3
Test
3
1.3 The values stated in SI units are to be regarded as the
D 3363 Test Method for Film Hardness by Pencil Test
standard. The values given in parentheses are for information
D 4541 Test Method for Pull-Off Strength of Coatings
4
only.
Using Portable Adhesion Testers
1.4 This standard does not purport to address all of the
D 4585 Practice for Testing Water Resistance of Coatings
3
safety concerns, if any, associated with its use. It is the
Using Controlled Condensation
responsibility of whoever uses this standard to consult and
3. Summary of Practice
establish appropriate safety and health practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Coated specimens are placed in an enclosed chamber to
permit free settling of fog on all specimens.The temperature of
2. Referenced Documents
the chamber is usually maintained at 38°C (100°F). The
2.1 ASTM Standards:
exposure condition is varied by selecting the duration of the
2
B117 Practice for Operating Salt Spray (Fog) Apparatus
test. Water permeates the coating at rates that are dependent
D 609 Practice for Preparation of Cold-Rolled Steel Panels
upon the characteristics of the coating. Any effects such as
for Testing Paint, Varnish, Conversion Coatings, and
color change, blisters, loss of adhesion, softening, or embrittle-
3
Related Coating Products
ment are observed and reported.
D 610 Test Method for Evaluating Degree of Rusting on
4
4. Significance and Use
Painted Steel Surfaces
D 714 Test Method for Evaluating Degree of Blistering of
4.1 Water can cause the degradation of coatings, so knowl-
3
Paints
edge of how a coating resists water is helpful in predicting its
D 823 Practices for Producing Films of Uniform Thickness
service life. Failure in water fog tests may be caused by a
3
of Paint, Varnish, and Related Products on Test Panels
number of factors, including a deficiency in the coating itself,
D 870 Practice for Testing Water Resistance of Coatings
contamination of the substrate, or inadequate surface prepara-
3
Using Water Immersion
tion. The test is therefore useful for evaluating coatings alone
or complete coating systems.
4.2 Waterfogtestsareusedforresearchanddevelopmentof
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
coatingsandsubstratetreatments,specificationacceptance,and
Related Coatings, Materials, and Applications and is the direct responsibility of
quality control in manufacturing.These tests usually result in a
Subcommittee D01.27 on Accelerated Testing.
Current edition approved Aug. 10, 2002. Published October 2002. Originally
published as D 1735 – 60 T. Last previous edition D 1735 – 99.
2
Annual Book of ASTM Standards, Vol 03.02
3 5
Annual Book of ASTM Standards, Vol 06.01. Annual Book of ASTM Standards, Vol 11.01.
4 6
Annual Book of ASTM Standards, Vol 06.02. Annual Book of ASTM Standards, Vol 02.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1735–02
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pass or fail determination, but the degree of failure may also be glass or plastic funnel with a diameter of area 80 cm (area 100
measured.Acoating system is considered to pass if there is no mm) with the stem of the funnel extendin
...