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Reducing Modulus of Sealants to Improve Durability
President of Klosowski Scientific Inc., Chief Chemist—Engineering Diagnostics Inc., FASTM, Retired Senior Scientist, Dow Coming Corporation, Klosowski Scientific Inc., Bay City, Michigan
President, The Performance Strategy Group, www.performancestrategygroup.com, Registered Professional Engineer, Certified New Product Development Professional, John E. Plott, PE LLC, Midland, MI
(Received 23 May 2005; accepted 20 October 2005)
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.
sealant, additive, adhesion, modulus, elongation, movement, durability
Paper ID: JAI13415
Title Reducing Modulus of Sealants to Improve Durability
Symposium Durability of Building & Construction Sealants, Second Symposium, 2005-06-16
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