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    Status of High-Rise Building Sealants in the U.S.

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    Polysulfide sealants were the only elastomeric sealants available for the modern curtainwall beginning in the early 1950's. They had rapid growth until the early 60's with sales of 3 million kgs., when solvent acrylic, urethane, and silicone sealants were introduced and broke the monopoly of polysulfides. By 1975 the above four sealants had sales in the range of 3 to 4.5 million kgs. By 1988 silicone sales were 10 million kgs followed by urethane with 6 million kgs. Polysulfide and solvent acrylic sealants totaled 3 million kgs. Butyl sealants and acrylic latex sealants are not really competitive with the above.


    curtainwall, movement capability, recovery, stopless glazing, construction adhesive

    Author Information:

    Panek, JR
    Specialized Consulting Services, Yardley, Pa.

    Committee/Subcommittee: C24.35

    DOI: 10.1520/STP26815S