ASTM-C961 Historical Revision Information
Standard Test Method for Lap Shear Strength of Sealants

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Standard Test Method for Lap Shear Strength of Sealants


1.1 This test method covers a laboratory procedure for determining the lap shear strength of sealants. It also provides information on the adhesive bond of the sealants to the tested substrates.

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.

1.4 The subcommittee with jurisdiction of this standard is not aware of any similar or equivalent ISO standard.

Significance and Use

Sealants are generally subjected to longitudinal and lateral shear stresses in end use applications. This test method measures the cohesive strength of sealants when subjected to shear stresses, and also provides information regarding the adhesive bond to the substrates being tested.


lap shear; lap shear strength; sealant; shear strength; Lap-shear applications/testing; Sealants; Adhesion--preformed sealing tapes; Shear testing--building materials; ICS Number Code 91.100.50 (Binders. Sealing materials)

To find similar documents by ASTM Volume:

04.07 (Building Seals and Sealants; Fire Standards; Dimension Stone)

To find similar documents by classification:

91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)

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Document Number


Revision Level

2006 R11 EDITION



Modification Type


Publication Date

Jan. 1, 2012

Document Type

Test Method

Page Count

4 pages

Committee Number