NIST logo

Publication Citation: Service Life Prediction for Sealants

NIST Authors in Bold

Author(s): Christopher C. White; Donald L. Hunston; Kar Tean Tan;
Title: Service Life Prediction for Sealants
Published: August 27, 2012
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.
Conference: 5th European Weathering Symposium
Proceedings: Proceeding from the 5th European Weathering Symposium
Pages: pp. 37 - 63
Location: Lisbon, -1
Dates: September 21-23, 2011
Keywords: Sealants; Service Life Prediction; model; construction; weathering
Research Areas: Service Life Prediction