ASTM C961-15 PDF Download

ASTM C961-15 is a standard test method for determining the lap shear strength of sealants. It specifically measures the cohesive strength of sealants when subjected to shear stresses, and also provides information on the adhesive bond between the sealants and the tested substrates. This test method is used in the laboratory to evaluate the performance and durability of sealants in end-use applications where they are subjected to longitudinal and lateral shear stresses.

The purpose of this standard is to establish a consistent and reliable procedure for determining the lap shear strength of sealants. It provides manufacturers, users, and regulatory bodies with a standardized test method to assess the quality and performance of sealants. The results obtained from this test can be used for product development, quality control, specification compliance, and research purposes.

It is important to note that at the time of publication of this standard, there were no similar or equivalent ISO standards available. ASTM C961-15 serves as a standalone guidance for conducting the lap shear strength test on sealants.