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Kansas City, MO, United States

Klosowski J.M.,Klosowski Scientific Inc. | Klosowski J.M.,Engineering Diagnostics Inc. | Klosowski J.M.,Dow Corning | Klosowski J.M.,SWR Institute | And 2 more authors.
ASTM Special Technical Publication | Year: 2010

This paper reviews sealant weathering test methods developed during the past 40 years and highlights the fact that repeated movement cycles were shown to be important to reproduce some of the damage seen on real buildings. The studies reviewed further demonstrate that water, sunlight (especially the UV portion), and heat are important degradation factors that act on real buildings. Copyright © 2010 by ASTM International. Source


Klosowski J.M.,Klosowski Scientific Inc. | Klosowski J.M.,Engineering Diagnostics Inc. | Klosowski J.M.,Dow Corning | Klosowski J.M.,SWR Institute | And 2 more authors.
ASTM Special Technical Publication | Year: 2010

A new sealant weathering test method expands on existing test methodologies. In ASTM C719, repeated movement cycles were shown to be important to reproduce some of the damage seen on real buildings. Weathering tests done previously demonstrate that water, sunlight (especially the UV portion), and heat are all important degradation factors that act on real buildings. Thus this new test combines water, heat, light, and movement acting on a sealant joint, fabricated to an ASTM C719 joint configuration, in artificial weathering machines. The joints are also subjected to identical movement in four different climates. Correlations of the damage done to various sealants in four varied U.S. climates and the artificial weathering machines are explored. Copyright © 2010 by ASTM International. Source

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