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    Preformed Butyl Tapes in Glazing Applications

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    The different types of glazing systems currently in use today are described. This paper is directed toward wet glazing only and specifically the use of preformed butyl elastomeric tape. The development of a suitable tape formulation necessitates understanding the demands placed on the tape while in service. Adhesion to substrates, squeeze-out under load, pump out resistance, compression-deflection properties at various temperatures, and durability under long-term aging are typical parameters of a quality tape. Tests that define these characteristics and typical data are presented. Selection of tape is dependent upon whether the system requires a compressible, noncompressible, or shimmed tape. Installation techniques including the use of liquid sealants as well as proper joint preparation are discussed. Status of ASTM Subcommittee C24.50 on Preformed Tape Sealants efforts in test methods and specifications are discussed.


    glazing tapes, sealants, characteristics, glass, weather, compressibility, wind pressure

    Author Information:

    Bellanca, CL
    Manager, Technical Marketing Services, Protective Treatments, Inc., Dayton, OH

    Committee/Subcommittee: C24.50

    DOI: 10.1520/STP22992S