Service Life Prediction for Sealants

Published

September 29, 2011

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

Pub Type

Conferences

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 May 3, 2025)