ASTM D5179-02(2008)

Standard Test Method for Measuring Adhesion of Organic Coatings to Plastic Substrates by Direct Tensile Testing

SIGNIFICANCE AND USE
The pull-off strength (commonly referred to as adhesion) of a coating is an important performance property that has been used in specifications. This test method serves as a means for uniformly preparing and testing organic coatings on plastic substrates. Further information may be found in Appendix X1.
SCOPE
1.1 This test method covers the laboratory determination of organic coating adhesion to plastic substrates by mounting and removing an aluminum stud from the surface of the coating and measuring the force required to break the coating/substrate bond with a tensile tester.  
1.2 This test method requires that the aluminum stud be adhered directly to the surface of a coated, cured panel (Fig. 1).
1.3 This test method is used to compare the adhesion of coatings to various plastic substrates, thus allowing for a quantitative comparison of various coating/substrate combinations.
1.4 Other tensile test methods are Test Method D 4541 and ISO 4624 (but are not technically equivalent).
1.5 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.
1.6 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: 30-Jun-2008
• ICS: 25.220.60 - Organic coatings
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.23 - Physical Properties of Applied Paint Films

Relations

• Replaces: ASTM D5179-02 - Standard Test Method for Measuring Adhesion of Organic Coatings to Plastic Substrates by Direct Tensile Testing
• Effective Date: 01-Jul-2008
• Referred By: ASTM D5324-16(2022) - Standard Guide for Testing Water-Borne Architectural Coatings
• Effective Date: 01-Jul-2008
• Referred By: ASTM D5146-10(2019) - Standard Guide to Testing Solvent-Borne Architectural Coatings
• Effective Date: 01-Jul-2008
• Referred By: ASTM D4796-17(2022) - Standard Test Method for Bond Strength of Thermoplastic Pavement Marking Materials
• Effective Date: 01-Jul-2008

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: D5179 − 02(Reapproved 2008)
Standard Test Method for
Measuring Adhesion of Organic Coatings to Plastic
1
Substrates by Direct Tensile Testing
This standard is issued under the fixed designation D5179; 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 2.2 Other Standard:
3
ISO 4624 Paints and Varnishes—Pull-off test for adhesion
1.1 This test method covers the laboratory determination of
organic coating adhesion to plastic substrates by mounting and
3. Summary of Test Method
removinganaluminumstudfromthesurfaceofthecoatingand
3.1 An aluminum stud is bonded directly to a coated cured
measuring the force required to break the coating/substrate
panel. The adhesive is allowed to cure for2hat room
bond with a tensile tester.
temperature.The specimen is then subjected to test on a tensile
1.2 This test method requires that the aluminum stud be
tester equipped with an upper coupling adapter (Fig. 2), and a
adhereddirectlytothesurfaceofacoated,curedpanel(Fig.1).
restraining device (Fig. 3).
1.3 This test method is used to compare the adhesion of
3.2 If a coating is to fulfill its function of protecting or
coatings to various plastic substrates, thus allowing for a
decorating a substrate, it must adhere to it for the expected
quantitative comparison of various coating/substrate combina-
service life. Because the substrate and its surface preparation
tions.
(or lack of it) has a drastic effect on the adhesion of coatings,
a method of evaluation adhesion of a coating to different
1.4 Other tensile test methods are Test Method D4541 and
substrates or surface treatments, or of different coating to the
ISO 4624 (but are not technically equivalent).
same substrate and treatment, is of considerable usefulness in
1.5 The values stated in inch-pound units are to be regarded
the industry.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4. Significance and Use
and are not considered standard.
4.1 The pull-off strength (commonly referred to as adhe-
1.6 This standard does not purport to address all of the
sion)ofacoatingisanimportantperformancepropertythathas
safety concerns, if any, associated with its use. It is the
been used in specifications.This test method serves as a means
responsibility of the user of this standard to establish appro-
for uniformly preparing and testing organic coatings on plastic
4
priate safety and health practices and determine the applica-
substrates. FurtherinformationmaybefoundinAppendixX1.
bility of regulatory limitations prior to use.
5. Apparatus and Materials
5
2. Referenced Documents
5.1 Tensile Tester, commercially available.
2
2.1 ASTM Standards:
5.2 Aluminum Stud—The shape and dimensions of the stud
D4541 Test Method for Pull-Off Strength of Coatings Using
are shown in Fig. 1.
Portable Adhesion Testers
5.3 Upper Coupling Adaptor—The apparatus is shown in
3 1
Fig. 2. The adaptor is 3 ⁄4 in. (94 mm) long, 1 ⁄4 in. (31 mm)
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
1
This test method is under the jurisdiction of ASTM Committee D01 on Paint 4th Floor, New York, NY 10036, http://www.ansi.org.
4
and Related Coatings, Materials, andApplications and is the direct responsibility of Gray, K. N., Buckley, S. E., and Nelson, G. L., “Accessing Measurement
Subcommittee D01.23 on Physical Properties of Applied Paint Films. Standards for CoatingAdhesion to Plastics,” Modern Paint and Coatings Journal ,
Current edition approved July 1, 2008. Published July 2008. Originally approved Vol 75, No. 10, October 1985, p. 160.
5
in 1991. Last previous edition approved in 2002 as D5179 – 02. DOI: 10.1520/ The sole source of supply of the wooden puritan applicators, in sizes 6 in. (150
D5179-02R08. mm)inlengthand0.007in.(2mm)indiameter,knowntothecommitteeatthistime
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or is Hardwood Products Co., Guilford, ME 04443. If you are aware of alternative
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM suppliers, please provide this information to ASTM International. Your comments
Standards volume information, refer to the standard’s Document Summary page on will receive careful consideration at a meeting of the responsible technical
1
the ASTM website. committee, which you may attend.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

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D5179 − 02 (2008)
6
5.6 Adhesive, cyanoa
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D5179–98 Designation:D5179–02(Reapproved2008)
Standard Test Method for
Measuring Adhesion of Organic Coatings to Plastic
1
Substrates by Direct Tensile Testing
This standard is issued under the fixed designation D 5179; 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
1.1 This test method covers the laboratory determination of organic coating adhesion to plastic substrates by mounting and
removing an aluminum stud from the surface of the coating and measuring the force required to break the coating/substrate bond
with a tensile tester.
1.2 This test method requires that the aluminum stud be adhered directly to the surface of a coated, cured panel (Fig. 1).
1.3 This test method is used to compare the adhesion of coatings to various plastic substrates, thus allowing for a quantitative
comparison of various coating/substrate combinations.
1.4 Other tensile test methods are Test Method D 4541 and ISO 4624 (but are not technically equivalent).
1.5The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.5 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.
1.6 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
2
2.1 ASTM Standards:
D 4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
2.2 Other Standard:
3
ISO 4624 Paints and Varnishes—Pull-off test for adhesion
3. Summary of Test Method
3.1 An aluminum stud is bonded directly to a coated cured panel. The adhesive is allowed to cure for2hat room temperature.
The specimen is then subjected to test on a tensile tester equipped with an upper coupling adapter (Fig. 2), and a restraining device
(Fig. 3).
3.2 If a coating is to fulfill its function of protecting or decorating a substrate, it must adhere to it for the expected service life.
Because the substrate and its surface preparation (or lack of it) has a drastic effect on the adhesion of coatings, a method of
evaluation adhesion of a coating to different substrates or surface treatments, or of different coating to the same substrate and
treatment, is of considerable usefulness in the industry.
4. Significance and Use
4.1 The pull-off strength (commonly referred to as adhesion) of a coating is an important performance property that has been
used in specifications. This test method serves as a means for uniformly preparing and testing organic coatings on plastic
4
substrates. Further information may be found in Appendix X1.
1
This test method is under the jurisdiction of ASTM Committee D-1D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.23 on Physical Properties of Applied Paint Films .
Current edition approved June 10, 1998.July 1, 2008. Published September 1998.July 2008. Originally published as D5179–91.approved in 1991. Last previous edition
D5179–97a.approved in 2002 as D 5179 – 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
, Vol 06.02.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Gray, K. N., Buckley, S. E., and Nelson, G. L., “Accessing Measurement Standards for Coating Adhesion to Plastics,” Modern Paint and Coatings Journal , Vol 75,
No. 10, October 1985, p. 160.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
1

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D5179–02 (2008)
FIG. 1 Direct Tensile Model
FIG. 2 Upper Coupling Adaptor
FIG. 3 Direct Tensile Restraining Device
...