ASTM D2370-98(2002)

Standard Test Method for Tensile Properties of Organic Coatings

SIGNIFICANCE AND USE
Tensile properties determined by this method are of value in studying the behavior of coatings subjected to environmental stresses, such as those produced by aging and weathering. (See Refs. (1-10).)5  
Tensile properties may vary with specimen thickness, method of preparation, gage length, rate of load application, tensile tester response, and type of grips used. Consequently, where precise comparative results are desired, these factors must be carefully controlled.
SCOPE
1.1 This test method covers the determination of the elongation, tensile strength, and stiffness (modulus of elasticity) of organic coatings when tested as free films.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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. Specific hazard statements are given in Section 7.

General Information

• Status: Historical
• Publication Date: 09-Dec-1998
• 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 D2370-98 - Standard Test Method for Tensile Properties of Organic Coatings
• Effective Date: 10-Dec-1998
• Replaced By: ASTM D2370-98(2002)e1 - Standard Test Method for Tensile Properties of Organic Coatings
• Effective Date: 10-Jul-2002
• Referred By: ASTM D522/D522M-17(2021) - Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings
• Effective Date: 10-Dec-1998
• Referred By: ASTM D6947/D6947M-16(2023) - Standard Specification for Liquid Applied Moisture Cured Polyurethane Coating Used in Spray Polyurethane Foam Roofing System
• Effective Date: 10-Dec-1998
• Referred By: ASTM D1005-95(2020) - Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
• Effective Date: 10-Dec-1998
• Referred By: ASTM D3359-23 - Standard Test Methods for Rating Adhesion by Tape Test
• Effective Date: 10-Dec-1998
• Referred By: ASTM D6958-20 - Standard Test Methods for Evaluating Side-Bonding Potential of Wood Coatings
• Effective Date: 10-Dec-1998
• Referred By: ASTM D6763-16(2022) - Standard Guide for Testing Exterior Wood Stains and Clear Water Repellents
• Effective Date: 10-Dec-1998
• Referred By: ASTM D4708-19 - Standard Practice for Preparation of Uniform Free Films of Organic Coatings
• Effective Date: 10-Dec-1998
• Referred By: ASTM D6694/D6694M-15(2023) - Standard Specification for Liquid-Applied Silicone Coating Used in Spray Polyurethane Foam Roofing Systems
• Effective Date: 10-Dec-1998
• Referred By: ASTM D5324-16(2022) - Standard Guide for Testing Water-Borne Architectural Coatings
• Effective Date: 10-Dec-1998
• Referred By: ASTM E1795-20a - Standard Specification for Non-Reinforced Liquid Coating Encapsulation Products for Leaded Paint in Buildings
• Effective Date: 10-Dec-1998
• Referred By: ASTM B905-00(2021) - Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test
• Effective Date: 10-Dec-1998
• Referred By: ASTM D6083/D6083M-21 - Standard Specification for Liquid-Applied Acrylic Coating Used in Roofing
• Effective Date: 10-Dec-1998
• Referred By: ASTM G210-13(2023) - Standard Practice for Operating the Severe Wastewater Analysis Testing Apparatus
• Effective Date: 10-Dec-1998

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:D2370–98(Reapproved2002)
Standard Test Method for
1
Tensile Properties of Organic Coatings
This standard is issued under the fixed designation D2370; 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 3.1.1 elongation—the increase in specimen length from the
point of initial load application to the point of film rupture in
1.1 This test method covers the determination of the elon-
a tension test.
gation, tensile strength, and stiffness (modulus of elasticity) of
3.1.2 gage length—the initial length of the test specimen
organic coatings when tested as free films.
between the jaws of the tensile tester.
1.2 The values stated in inch-pound units are to be regarded
3.1.3 stiffness (modulus of elasticity)—the load per unit area
as standard. The values given in parentheses are mathematical
required to elongate the film 1 % from the first point in the
conversions to SI units that are provided for information only
stress-strain curve where the slope becomes constant.
and are not considered standard.
3.1.4 stress-strain curve—the curve resulting from a plot of
1.3 This standard does not purport to address all of the
tensile load against the distance of jaw separation (elongation
safety concerns, if any, associated with its use. It is the
of specimen).
responsibility of the user of this standard to establish appro-
3.1.5 tensile strength (nominal)—the load per original unit
priate safety and health practices and determine the applica-
area at which a specimen fails or yields in a tension (pull) test.
bility of regulatory limitations prior to use. Specific hazard
statements are given in Section 7.
4. Summary of Test Method
2. Referenced Documents 4.1 Free unsupported films of the materials to be tested are
2
prepared.Thetensilepropertiesofthefreefilmsaredetermined
2.1 ASTM Standards:
by means of a tensile testing apparatus.
D823 Practices for Producing Films of Uniform Thickness
of Paint, Varnish, and Related Products on Test Panels
5. Significance and Use
D882 Test Method for Tensile Properties of Thin Plastic
5.1 Tensile properties determined by this method are of
Sheeting
value in studying the behavior of coatings subjected to envi-
D1005 Test Method for Measurement of Dry-Film Thick-
ronmental stresses, such as those produced by aging and
ness of Organic Coatings Using Micrometers
4
weathering. (See Refs. (1-10).)
D3980 Practice for Interlaboratory Testing of Paint and
3 5.2 Tensile properties may vary with specimen thickness,
Related Materials
method of preparation, gage length, rate of load application,
D4708 Practice for Preparation of Uniform Free Films of
tensile tester response, and type of grips used. Consequently,
Organic Coatings
where precise comparative results are desired, these factors
3. Terminology must be carefully controlled.
3.1 Definitions of Terms Specific to This Standard:
6. Apparatus
6.1 Equipment for applying films of uniform thickness as
1
described in Practices D823.
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
6.2 Micrometer Film Thickness Gage as described in Test
Subcommittee D01.23 on Physical Properties of Applied Paint Films.
Method D1005.
Current edition approved Dec. 10, 1998. Published February 1999. Originally
6.3 Tensile Tester of the constant rate of jaw separation
approved in 1965. Last previous edition approved in 1998 as D2370 – 98. DOI:
10.1520/D2370-98R02. type, equipped with load cells having capacities of 0.2 to 4.4 lb
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(100 to 2000 g), and equipped with an indicating device such
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
4
the ASTM website. Boldface numbers in parentheses refer to the list of references at the end of this
3
Withdrawn. standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2370–98 (2002)
as an electronic constant speed chart recorder, a digital device 11. Procedure
that displays numerical values, or a printer that records the
11.1 Select a mutually agreed upon gage length in the range
numerical values.
of 1 to 5 in. (25 to 125 mm).
6.4 Precision Specimen Cutter having a double blade with
11.2 Prepare 10 test specimens for each materi
...