Standard Test Method for Fluid Tightness Ability of Adhesives Used on Threaded Fasteners

SIGNIFICANCE AND USE
5.1 Thread-locking adhesives are often used on threaded fasteners in sealing applications. This test method is used to determine an adhesive's ability to provide sealing capabilities under specified conditions.
SCOPE
1.1 This test method covers the determination of the ability of adhesives used for locking and sealing threaded fasteners, to make leak-tight assemblies.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Published
Publication Date
31-Dec-2022
Technical Committee
Current Stage
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ASTM D5657-07(2023) - Standard Test Method for Fluid Tightness Ability of Adhesives Used on Threaded Fasteners
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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: D5657 − 07 (Reapproved 2023)
Standard Test Method for
Fluid Tightness Ability of Adhesives Used on Threaded
Fasteners
This standard is issued under the fixed designation D5657; 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
1.1 This test method covers the determination of the ability 3.1 Definitions:
of adhesives used for locking and sealing threaded fasteners, to 3.1.1 Many of the terms in this test method are defined in
make leak-tight assemblies. Terminology D907.
1.2 The values stated in inch-pound units are to be regarded
4. Summary of Test Method
as the standard. The SI units given in parentheses are for
4.1 This test method consists of subjecting an adhesive-
information only.
cured nut-and-bolt assembly to 50 psi pressure and determin-
1.3 This standard does not purport to address all of the
ing the cured adhesive’s ability to make the assembly leak-
safety concerns, if any, associated with its use. It is the
tight.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5. Significance and Use
mine the applicability of regulatory limitations prior to use.
5.1 Thread-locking adhesives are often used on threaded
1.4 This international standard was developed in accor-
fasteners in sealing applications. This test method is used to
dance with internationally recognized principles on standard-
determine an adhesive’s ability to provide sealing capabilities
ization established in the Decision on Principles for the
under specified conditions.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6. Apparatus
Barriers to Trade (TBT) Committee.
6.1 Test Fixture, as shown in Fig. 1, consisting of the
2. Referenced Documents following:
2 6.1.1 Pressure Vessel, provided with a means of filling with
2.1 ASTM Standards:
soapy water, capable of applying, withstanding, and measuring
D907 Terminology of Adhesives
50 psi (345 kPa) pressure of soapy water, and equipped with an
2.2 SAE Standard:
air inlet and a gage for supplying and reading the pressure.
SAE J429 Mechanical and Material Requirements for Exter-
6.1.2 Metal Plate, flat, smooth approximately ⁄2 in.
nally Threaded Fasteners
(12.7 mm) thick, drilled with a ⁄8 in. (9.5 mm) hole at its
2.3 Federal Specification:
center. The hole is counterbored ⁄8 in. (15.9 mm) diameter by
FF-N-836 Nut: Square, Hexagon, Cap, Slotted, Castle,
⁄16in.(1.6 mm)deep.Themetalplateisweldedtothepressure
Knurled, Welding and Single Ball Seat
vessel.
6.1.3 Rubber O-Ring or Flat Rubber Gasket, ⁄8 in.
1 (15.9 mm) outside diameter by ⁄16 in. (11.1 mm) inside diam-
This test method is under the jurisdiction of ASTM Committee D14 on
Adhesives and is the direct responsibility of Subcommittee D14.80 on Metal
eter by ⁄32 in. (2.4 mm) thick.
Bonding Adhesives.
6.1.4 Metal Plate, used as a means of pressing the nut of the
Current edition approved Jan. 1, 2023. Published January 2023. Originally
adhesive-treated test specimen against the O-ring or gasket
approved in 1995. Last previous edition approved in 2014 as D5657 – 07 (2014).
with sufficient force to prevent leakage between the top plate
DOI: 10.1520/D5657-07R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and the washer face of the test specimen nut.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1.5 Studs and Nuts, used to clamp the fixture.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 7. Test Specimens
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Dr., Warrendale, PA 15096-0001, http://www.sae
...

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