ASTM D7532-09(2016)

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Designation: D7532 − 09 D7532 − 09 (Reapproved 2016)
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
1.1 This practice will provide a protocol for determining the effect of extended drying (open time) periods on the shear and peel
strength performance of a carpet adhesive when bonding a carpet backing or standard duck cloth material to a substrate.
1.2 The values stated in SI 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.
2. Referenced Documents
2.1 ASTM Standards:
D907 Terminology of Adhesives
D6004 Test Method for Determining Adhesive Shear Strength of Carpet Adhesives
D6862 Test Method for 90 Degree Peel Resistance of Adhesives
2.2 Voluntary Product Standards:
PS1 Construction and Industrial Plywood
3. Terminology
3.1 Definitions:
3.1.1 Many of the terms in this test method are defined in Terminology D907.
3.1.2 re-tack, n—an industry term used to describe an adhesive performance characteristic when the original application is
modified to include an extended adhesive open time period followed by re-application of pressure to bond the carpet to the
substrate.
3.1.3 standard conditions, n—23 6 2°C (73 6 3°F) and 50 % relative humidity.
4. Summary of Practice
4.1 This practice is for a comparison of shear strength and 90 degree peel strength performance between a standard duck cloth
material versus a specific carpet backing. Performance testing occurs after an applied test adhesive has been exposed to standard
conditions ambient air for various open time periods. It should be noted that the use of duck cloth is necessary since there is no
bench mark or standardized carpet backing currently produced in the United States.
5. Significance and Use
5.1 Selection of or development of a carpet adhesive, for direct glue or adhered applications requires knowledge of the
adhesive’s ability to perform adequately when it is found necessary to correct an installation concern, such as bubbles or wrinkles,
by re-rolling or application of dead weight to the affected area without the application or injection of additional adhesive.
This practice is under the jurisdiction of ASTM Committee D14 on Adhesives and is the direct responsibility of Subcommittee D14.10 on Working Properties.
Current edition approved May 1, 2009May 1, 2016. Published June 2009May 2016. Originally approved in 2009. Last previous edition approved in 2009 as D7532 – 09.
DOI: 10.1520/D7532-09.10.1520/D7532-09R16.
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D7532 − 09 (2016)
5.2 Adhesive bonding of some carpet backings to substrates and the adhesive bonding of carpet backings to a pad foundation,
double stick or glue application, require that prior to bonding the adhesive is to be dried sufficiently to allow for no transfer of
adhesive as a result of slight finger pressure.
6. Apparatus
1 3 1
6.1 Applicator Trowel, with a notch pattern of 3.2 mm ( ⁄8 in.) wide, 2.4 mm ( ⁄32 in.) deep, 3.2 mm ( ⁄8 in.) flat.
NOTE 1—Adhesive manufacturer application instructions may recommend different trowel notching design.
6.2 Six 1 kg (2.2 lb.) dead weights.
6.3 Testing Equipment in accordance with the test method to be implemented.
6.4 Timer.
7. Materials
7.1 Adhesi
...