SYMPOSIA PAPER Published: 01 April 2006

Reducing Modulus of Sealants to Improve Durability


The premise is that if one reduces sealant fatigue by lowering modulus while leaving other characteristics of a sealant unchanged, its durability will improve. Reducing sealant fatigue is seen as a positive consequence of lowering the modulus of elasticity of a sealant. The data shows the effect of incorporating a modulus modifier in one- and two-part (standard curing) urethane sealants and a one-part silane curing polyether sealant. This approach lowers modulus with no or minimum reformulation.

Author Information

Klosowski, JM
Dow Corning Corporation, Klosowski Scientific Inc., Bay City, Michigan
Plott, JE
Certified New Product Development Professional, John E. Plott, PE LLC, Midland, MI
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Developed by Committee: C24
Pages: 3–8
DOI: 10.1520/STP41020S
ISBN-EB: 978-0-8031-5892-4
ISBN-13: 978-0-8031-3414-0