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ASTM D3732-82(2011)

(Practice)

Standard Practice for Reporting Cure Times of Ultraviolet-Cured Coatings

Standard Practice for Reporting Cure Times of Ultraviolet-Cured Coatings

SIGNIFICANCE AND USE
This practice provides a guide whereby all pertinent variables relating to the ultraviolet cure of a coating are described.
SCOPE
1.1 This practice applies to all coatings cured by ultraviolet energy.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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-2011
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.55 - Factory Applied Coatings on Preformed Products
Current Stage
Ref Project

Relations

Replaces
ASTM D3732-82(2005) - Standard Practice for Reporting Cure Times of Ultraviolet-Cured Coatings
Effective Date
01-Jun-2011
Referred By
ASTM D7188-05(2019) - Standard Terminology for Printing Inks, Materials, and Processes
Effective Date
01-Jun-2011

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ASTM D3732-82(2011) - Standard Practice for Reporting Cure Times of Ultraviolet-Cured CoatingsASTM D3732-82(2011) - Standard Practice for Reporting Cure Times of Ultraviolet-Cured Coatings
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ASTM D3732-82(2011) - Standard Practice for Reporting Cure Times of Ultraviolet-Cured 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3732 − 82 (Reapproved 2011)
Standard Practice for
Reporting Cure Times of Ultraviolet-Cured Coatings
This standard is issued under the fixed designation D3732; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D3281 Test Method for Formability of Attached Organic
CoatingswithImpact-WedgeBendApparatus(Withdrawn
1.1 This practice applies to all coatings cured by ultraviolet
1995)
energy.
D3359 Test Methods for Measuring Adhesion by Tape Test
1.2 The values stated in SI units are to be regarded as
D3363 Test Method for Film Hardness by Pencil Test
standard. No other units of measurement are included in this
standard.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 Definitions of Terms Specific to This Standard:
safety concerns, if any, associated with its use. It is the
3.1.1 cure, n—the condition of a coating after conversion to
responsibility of the user of this standard to establish appro-
the final state of cure as measured by tests generally related to
priate safety and health practices and determine the applica-
end-use performance and mutually agreeable to supplier and
bility of regulatory limitations prior to use.
purchaser.
3.1.2 ultraviolet curing, n—conversion of a coating from its
2. Referenced Documents
application state to its final use state by means of a mechanism
2.1 ASTM Standards:
initiated by ultraviolet radiation generated by equipment de-
D658 Test Method for Abrasion Resistance of Organic
signed for that purpose.
Coatings by Air Blast Abrasive (Withdrawn 1996)
D968 Test Methods for Abrasion Resistance of Organic
4. Significance and Use
Coatings by Falling Abrasive
4.1 This practice provides a guide whereby all pertinent
D1474 Test Methods for Indentation Hardness of Organic
variables relating to the ultraviolet cure of a coating are
Coatings
described.
D2197 Test Method for Adhesion of Organic Coatings by
Scrape Adhesion
5. Procedure
D2336 Guide for Specifying Factory Applied Wood Coat-
ings (Withdrawn 2008) 5.1 Apply the coating to be cured to the desired substrate at
D2793 Test Method for Block Resistance of Organic Coat- a film thickness typical to that normally used. After approxi-
ings on Wood Panel Substrates
mately the time delay encountered in production pass the
D2794 Test Method for Resistance of Organic Coatings to coated substrate through the curing equipment and subse-
the Effects of Rapid Deformation (Impact) quently test for cure, as defined in 3.1.1, using the appropriate
D3023 Practice for Determination of Resistance of Factory- methods listed in 5.1.1 through 5.1.11. The most commonly
Applied Coatings on Wood Products to Stains and Re- used test methods are listed in 5.1.1 through 5.1.4.
agents 5.1.1 Impact Resistance—Test Method D2794.
5.1.2 Film Hardness—Test Method D3363.
5.1.3 Solvent Rub Test—Hold a pad of cheesecloth or other
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
cloth saturated with an agreed-upon solvent, usually methyl
Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.55 on Factory Applied Coatings on Preformed Products.
ethyl ketone, over two adjacent fingers using a protective
Current edition approved June 1, 2011. Published June 2011. Originally
covering. Rub the wet pad back and forth across a 100-mm
approved in 1978. Last previous editi
...

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5.1 As the brush drag of a paint increases, any natural tendency on the part of the painter to overspread the paint is reduced. When all other factors are held constant, increased brush drag will result in greater film thickness with consequent improvement in durability and hiding. Conversely, sometimes it might be preferred to have a lesser degree of brush drag for easier application (that is, the amount of time and effort in applying a paint to a specific area is reduced with a lesser degree of brush drag).  
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SCOPE
1.1 This test method is a standardized brushout procedure for comparing the brush drag of architectural type solvent-borne paints.  
1.2 With slight modifications this test method is also applicable to solvent-borne paints.  
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1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM D2794-93(2024)(Test Method)
Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

SIGNIFICANCE AND USE
5.1 Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. In its use over many years, this test method for impact resistance has been found to be useful in predicting the performance of organic coatings for their ability to resist cracking caused by impacts.
SCOPE
1.1 This test method covers a procedure for rapidly deforming by impact a coating film and its substrate and for evaluating the effect of such deformation.  
1.2 This test method should be restricted to testing in only one laboratory when numerical values are used because of the poor reproducibility of the method. Interlaboratory agreement is improved when ranking is used in place of numerical values.  
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 concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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