Standard Guide for Testing Coating Powders and Powder Coatings

SIGNIFICANCE AND USE
This guide provides a useful summary to the selection and use of procedures for testing coating powders and powder coatings. It is applicable to both thermoplastic and thermoset coatings, unless indicated otherwise. By design this guide does not purport to address test methods or procedures developed specifically for the functional powder coating market, those coating powders for application to pipe or reinforced steel bars (rebar). Information on current test procedures for pipe and reinforced steel bar coating powders and powder coatings can be obtained through their respective ASTM Subcommittees, A01.05 and D01.48.
Selection of the methods to be followed and the interpretation of results must be governed by experience and the requirements in each individual case, together with agreement between the purchaser and seller. It should be noted that many of the methods used for characterizing a coating powder, such as gel time (Section 16) and inclined flow (Section 17), are primarily meant for the relative comparison of two coating powders, rather than to give a test value that can be interpreted as good or bad. Interpretation of the test results will depend on the specific application in question and will also often depend on the chemistry of the coating powder used.
SCOPE
1.1 This guide covers the selection and use of procedures for testing coating powders and powder coatings. The test methods included are listed in . Where more than one test method is listed for the same characteristic, no attempt is made to indicate superiority of one method over another. Selection of the methods to be followed must be governed by experience and the requirements in each individual case, together with agreement between the purchaser and the seller.
1.2 This guide also refers to methods developed specifically for the coating powder industry by the Powder Coating Institute, PCI, and the International Organization for Standards, ISO.
1.3 This guide describes the testing of coating powders as applied by electrostatic spray, fluidized bed, or any other applicable method.
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.

General Information

Status
Historical
Publication Date
31-May-2006
Current Stage
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ASTM D3451-06 - Standard Guide for Testing Coating Powders and Powder Coatings
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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: D3451 − 06
StandardGuide for
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Testing Coating Powders and Powder Coatings
This standard is issued under the fixed designation D3451; 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 guide covers the selection and use of procedures
Steel Surfaces
for testing coating powders and powder coatings. The test
D658 Test Method for Abrasion Resistance of Organic
methods included are listed in Table 1. Where more than one
3
Coatings by Air Blast Abrasive (Withdrawn 1996)
test method is listed for the same characteristic, no attempt is
D660 Test Method for Evaluating Degree of Checking of
made to indicate superiority of one method over another.
Exterior Paints
Selection of the methods to be followed must be governed by
D661 Test Method for Evaluating Degree of Cracking of
experience and the requirements in each individual case,
Exterior Paints
together with agreement between the purchaser and the seller.
D662 Test Method for Evaluating Degree of Erosion of
1.2 This guide also refers to methods developed specifically
Exterior Paints
for the coating powder industry by the Powder Coating
D714 Test Method for Evaluating Degree of Blistering of
Institute, PCI, and the International Organization for Stan-
Paints
dards, ISO.
D772 Test Method for Evaluating Degree of Flaking (Scal-
1.3 This guide describes the testing of coating powders as ing) of Exterior Paints
D822 Practice for Filtered Open-Flame Carbon-Arc Expo-
applied by electrostatic spray, fluidized bed, or any other
applicable method. sures of Paint and Related Coatings
D870 Practice for Testing Water Resistance of Coatings
1.4 The values stated in SI units are to be regarded as
Using Water Immersion
standard. No other units of measurement are included in this
D968 Test Methods for Abrasion Resistance of Organic
standard.
Coatings by Falling Abrasive
1.5 This standard does not purport to address all of the
D1005 Test Method for Measurement of Dry-Film Thick-
safety concerns, if any, associated with its use. It is the
ness of Organic Coatings Using Micrometers
responsibility of the user of this standard to establish appro-
D1014 Practice for Conducting Exterior Exposure Tests of
priate safety and health practices and determine the applica-
Paints and Coatings on Metal Substrates
bility of regulatory limitations prior to use.
D1308 Test Method for Effect of Household Chemicals on
Clear and Pigmented Organic Finishes
2. Referenced Documents
D1474 Test Methods for Indentation Hardness of Organic
2
2.1 ASTM Standards:
Coatings
B117 Practice for Operating Salt Spray (Fog) Apparatus
D1535 Practice for Specifying Color by the Munsell System
D522 Test Methods for Mandrel Bend Test of Attached
D1654 Test Method for Evaluation of Painted or Coated
Organic Coatings
Specimens Subjected to Corrosive Environments
D523 Test Method for Specular Gloss
D1729 Practice for Visual Appraisal of Colors and Color
D609 Practice for Preparation of Cold-Rolled Steel Panels
Differences of Diffusely-Illuminated Opaque Materials
for Testing Paint, Varnish, Conversion Coatings, and
D1730 Practices for Preparation of Aluminum and
Aluminum-Alloy Surfaces for Painting
D1731 Practices for Preparation of Hot-DipAluminum Sur-
1
This guide is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of faces for Painting
Subcommittee D01.51 on Powder Coatings.
D1732 Practices for Preparation of Magnesium Alloy Sur-
Current edition approved June 1, 2006. Published June 2006. Originally
faces for Painting
approved in 1975. Last previous edition approved in 2001 as D3451 – 01. DOI:
D1735 Practice for Testing Water Resistance of Coatings
10.1520/D3451-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D3451 − 06
Using Water Fog Apparatus D4242 Test Method for Inclined Plate Flow for Thermoset-
D1895 Test Methods forApparent Density, Bulk Factor, and ting Coating Powders
Pourability of Plastic Materials D4585 Practice for Testing Water Resistance of Coatings
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