Harmonization and Optimization of Weathering Test Methods for Building and Construction Sealants and Adhesives

    Volume 1, Issue 3 (March 2004)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 10 March 2004

    Page Count: 17


    Searle, ND
    Consultant, Deerfield Beach, Florida,

    (Received 20 December 2002; accepted 4 June 2003)

    Abstract

    Sealants and adhesives play a vital role in building engineering and are expected to perform well for at least 20 years. However, many fail prematurely, partly because of inadequate information on their long-term resistance to the effects of solar radiation, heat/cold, moisture, atmospheric pollutants and mechanical strain. The laboratory accelerated weathering tests, a necessity for determining in a short time whether products are suitable for the intended use, often fail to identify products with poor in-use performance. The validity of the test results depends on optimization of the test parameters so that aging effects of field conditions on sealants can be closely simulated. Simulation of the spectrum of solar radiation by the artificial light source is a critical factor. Simulation of the temperature, amount and type of moisture and mechanical strain that sealants experience under use conditions is also significant.


    Paper ID: JAI11609

    DOI: 10.1520/JAI11609

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    Author
    Title Harmonization and Optimization of Weathering Test Methods for Building and Construction Sealants and Adhesives
    Symposium Durability of Building and Construction Sealants and Adhesives, 2003-01-30
    Committee C24