STP1200

    Climate Driven Durability Tester

    Published: Jan 1992


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    Abstract

    The “Climate Driven Durability Tester” (CDDT) tests channel movement capability of caulks and sealants under exposure conditions. A wide range of % movements, channel geometries, and substrates can be studied in the CDDT. Results are reported for a series of caulks exposed in aluminum and glass channels following 3, 7, and 16 months exposure. Adhesive failures noted in the present study do not completely correlate with ASTM C794 peel adhesion test results. The inability of ASTM C794 to distinguish between viscoelastic effects and adhesive bond strength may account for its unreliable prediction of adhesive performance in the CDDT.

    Keywords:

    exposure, caulk, sealant, acrylic, silicone, ASTM C794, channel movement, Climate Driven Durability Tester, artificial weathering


    Author Information:

    Tanzer, JD
    research scientistSection Manager, Rohm and Haas Research Laboratories, PA

    Frankel, LS
    research scientistSection Manager, Rohm and Haas Research Laboratories, PA


    Paper ID: STP14871S

    Committee/Subcommittee: C24.40

    DOI: 10.1520/STP14871S


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