ASTM D7532-09(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: D7532 − 09 (Reapproved 2021)
Standard Practice for
Determination of Re-tack Ability of Carpet Adhesives
This standard is issued under the fixed designation D7532; 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 3.1.1 Many of the terms in this test method are defined in
Terminology D907.
1.1 This practice will provide a protocol for determining the
3.1.2 re-tack, n—an industry term used to describe an
effect of extended drying (open time) periods on the shear and
adhesive performance characteristic when the original applica-
peel strength performance of a carpet adhesive when bonding
tion is modified to include an extended adhesive open time
a carpet backing or standard duck cloth material to a substrate.
period followed by re-application of pressure to bond the
1.2 The values stated in SI units are to be regarded as the
carpet to the substrate.
standard. The values given in parentheses are for information
3.1.3 standard conditions, n—23 6 2°C (73 6 3°F) and
only.
50 % relative humidity.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4. Summary of Practice
responsibility of the user of this standard to establish appro-
4.1 This practice is for a comparison of shear strength and
priate safety, health, and environmental practices and deter-
90 degree peel strength performance between a standard duck
mine the applicability of regulatory limitations prior to use.
cloth material versus a specific carpet backing. Performance
1.4 This international standard was developed in accor-
testing occurs after an applied test adhesive has been exposed
dance with internationally recognized principles on standard-
to standard conditions ambient air for various open time
ization established in the Decision on Principles for the
periods. It should be noted that the use of duck cloth is
Development of International Standards, Guides and Recom-
necessary since there is no bench mark or standardized carpet
mendations issued by the World Trade Organization Technical
backing currently produced in the United States.
Barriers to Trade (TBT) Committee.
5. Significance and Use
2. Referenced Documents
5.1 Selection of or development of a carpet adhesive, for
2.1 ASTM Standards:
direct glue or adhered applications requires knowledge of the
D907 Terminology of Adhesives
adhesive’s ability to perform adequately when it is found
D6004 Test Method for Determining Adhesive Shear
necessary to correct an installation concern, such as bubbles or
Strength of Resilient Flooring and Carpet Adhesives
wrinkles, by re-rolling or application of dead weight to the
D6862 Test Method for 90 Degree Peel Resistance of
affected area without the application or injection of additional
Adhesives
adhesive.
2.2 Voluntary Product Standards:
5.2 Adhesive bonding of some carpet backings to substrates
PS1 Construction and Industrial Plywood
and the adhesive bonding of carpet backings to a pad
foundation, double stick or glue application, require that prior
3. Terminology
to bonding the adhesive is to be dried sufficiently to allow for
3.1 Definitions:
no transfer of adhesive as a result of slight finger pressure.
6. Apparatus
This practice is under the jurisdiction ofASTM Committee D14 on Adhesives
and is the direct responsibility of Subcommittee D14.10 on Working Properties.
6.1 Applicator Trowel, with a notch pattern of 3.2 mm ( ⁄8
Current edition approved April 1, 2021. Published April 2021. Originally
3 1
in.) wide, 2.4 mm ( ⁄32 in.) deep, 3.2 mm ( ⁄8 in.) flat.
approved in 2009. Last previous edition approved in 2016 as D7532 – 09 (2016).
NOTE 1—Adhesive manufacturer application instructions may recom-
DOI: 10.1520/D7532-09R21.
mend different trowel notching design.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 Six 1 kg (2.2 lb) dead weights.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.3 Testing Equipmentinaccordancewiththetestmethodto
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be implemented.
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D7532 − 09 (2021)
7. Materials 11.4 The extended drying time periods b
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