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Service Life Prediction for Sealants

Published

Author(s)

Christopher C. White, Donald L. Hunston, Kar T. Tan, James J. Filliben

Abstract

Previous industry consensus postulated that four elements of the weather: Temperature, Humidity, Ultraviolet Radiation, and Mechanical loading were responsible for the majority of the changes observed in sealants exposed to outdoor weathering. The NIST SPHERE based weathering device can separately control and monitor each of these four elements for a large number of samples. Using the SPHERE a large database of complex modulus change versus exposure has been compiled. This presentation will detail a statistical analysis of this database to verify that the previous postulation of Temperature, Humidity, UV and Mechanical loading was correct. Additionally, predictions of outdoor weathering based on indoor SPHERE based weathering will be compared to modulus change occurring in outdoor weathered sealant samples.
Proceedings Title
Proceedings of the 5th European Weathering Symposium
Volume
15
Issue
5
Conference Dates
September 21-23, 2011
Conference Location
Lisbon
Conference Title
5th European Weathering Symposium

Keywords

Sealant, Service Life Prediction, model, modulus, construction, weathering, SPHERE, Temperature, humidity, Ultraviolet Radiation, Mechanical Loading

Citation

White, C. , Hunston, D. , Tan, K. and Filliben, J. (2011), Service Life Prediction for Sealants, Proceedings of the 5th European Weathering Symposium, Lisbon, -1 (Accessed June 23, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 29, 2011, Updated February 19, 2017