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Significance and Use
5.1 This test method is intended to determine if a joint that is subjected to a mechanically induced cut will resist tear propagation during normal joint movement. A sealant with a high resistance to tear propagation will typically perform better than a sealant with a low resistance to tear propagation.
1.1 This test method evaluates the impact of an induced tear on a sealant specimen that is dimensioned, cured according to the guidelines in Test Method and then subjected to a constant strain. It is effective in differentiating between sealants that are used in dynamic joints subject to abrasion, punctures, tears, or combination thereof.
1.2 Since this test method is for the evaluation of tear propagation, an adhesive failure to the substrates provides no usable data regarding tear propagation. This would be considered a failed test and that data would be discarded, or at least separated from the other data from specimens that did not experience an adhesive failure.
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.
1.4 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)
ICS Number Code 23.040.80 (Seals for pipe and hose assemblies)
UNSPSC Code 31201600(Other adhesives and sealants)
ASTM C1681-14, Standard Test Method for Evaluating the Tear Resistance of a Sealant Under Constant Strain, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top