ASTM D1144-99(2021)

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.
Designation: D1144 − 99 (Reapproved 2021)
Standard Practice for
Determining Strength Development of Adhesive Bonds
This standard is issued under the fixed designation D1144; 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 3. Terminology
3.1 Definitions—Several terms in this practice are defined in
1.1 This practice covers the determination of the strength
accordance with Terminology D907.
development of adhesive bonds when tested on a standard
specimen under specified conditions of preparation and testing.
3.2 Definitions of Terms Specific to This Standard:
It is applicable to adhesives in liquid or paste form that require
3.2.1 activator, or accelerator (surface), n—an adhesive
curing at specified conditions of time and temperature or
curingagentthatisappliedtoabondingsurfaceforthepurpose
specific substrate preparation. It is intended primarily to be
of affecting or speeding, or both, the cure of an adhesive.
used with metal-to-metal adherends; however, plastics, woods,
3.2.2 fixture time (set time), n—the shortest time required by
glass, or combinations of these may be substituted.
an adhesive to develop handling strength such that test speci-
mens can be removed from fixtures, unclamped, or handled
1.2 The values stated in SI units are to be regarded as the
without stressing the bond, thereby affecting bond strength.
standard. The values given in parentheses are for information
only. 3.2.3 handling strength, n—a low level of strength initially
obtained by an adhesive that allows specimens to be handled,
1.3 This standard does not purport to address all of the
moved, or unclamped without causing disruption of the curing
safety concerns, if any, associated with its use. It is the
process or affecting bond strength.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 This practice contains suggested provisions for report-
1.4 This international standard was developed in accor-
ing strength values. Any ASTM test method for determining
dance with internationally recognized principles on standard-
strength properties of adhesive bonds may be used. This
ization established in the Decision on Principles for the
practice is not intended to determine the pot or working life of
Development of International Standards, Guides and Recom-
two-component epoxy of similar type adhesives. Refer to
mendations issued by the World Trade Organization Technical
Practice D1338. It should be noted that there are adhesives
Barriers to Trade (TBT) Committee.
whose testing requires special techniques and whose properties
are difficult to reproduce from tester to tester. These variables
2. Referenced Documents
should be kept in mind when analyzing the data obtained using
2.1 ASTM Standards: this practice.
D907 Terminology of Adhesives
D1002 Test Method for Apparent Shear Strength of Single- 5. Test Specimens
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
5.1 It is suggested that lap-type shear specimens in accor-
sion Loading (Metal-to-Metal)
dance with Test Method D1002, be used. Other types of test
D1338 Practice for Working Life of Liquid or Paste Adhe-
specimens may be used with agreement between the manufac-
sives by Consistency and Bond Strength
turer and the purchaser.
6. Preparation of Test Specimens
This practice is under the jurisdiction of ASTM Committee D14 on Adhesives
6.1 Prepare test specimens in accordance with Test Method
and is the direct responsibility of Subcommittee D14.10 on Working Properties.
D1002, or other applicable test method. Prepare the bonding
Current edition approved April 1, 2021. Published April 2021. Originally
surface by a method mutually agreed upon between the
approved in 1952. Last previous edition approved in 2016 as D1144 – 99 (2016).
DOI: 10.1520/D1144-99R21.
manufacturer and the purchaser. Vapor phase degreasing, grit
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
blasting,handabrasion,ortestingonoiledsurfacesaresomeof
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the methods that are available. If a surface activator or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. accelerator is used, apply it in accordance with the instructions
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D1144 − 99 (2021)
of the manufacturer. Use one- or two- surface activation as specifically required by the manufacturer or purchaser. As-
agreed upon between the manufacturer and the purchaser. semble specimens and clamp as recommended by the manu-
Allow assembled specimens to cure at the temperature and facturer.
period of time prescribed by the manufacturer to develo
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