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Significance and Use
During application, end users typically remove the adhesive from the container using the trowel and spread it onto the desired substrate. Adhesives with good rheological characteristics, therefore, will allow trowel retention. Adhesives with poor rheological characteristics tend to be unacceptable because they cannot be picked up by a trowel.
Bead configuration is important in order to provide proper wetting/contact of the carpet backing. Beads drawn with a trowel, which show a nonslumping ridge, are preferred because they allow good contact to both substrates.
Measurement of the slump resistance of the adhesive will allow an end user to know if an adhesive is capable of both adhering well to the trowel during application and maintain a nonflowing adhesive ridge.
1.1 This test method describes a procedure to measure slump, or sag, resistance of a trowel-grade carpet adhesive using a button slump test apparatus.
1.2 This test method provides a visual evaluation to relate troweled bead profile and trowel pickup.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D618 Practice for Conditioning Plastics for Testing
D907 Terminology of Adhesives
D2202 Test Method for Slump of Sealants
ICS Number Code 83.180 (Adhesives)
UNSPSC Code 31201601(Chemical adhesives)