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    Firestopping Through-Penetrations

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    Firestopping through-penetrations is a complex engineering task, and formulating the materials used in the process requires application of both art and sophisticated chemical technology. Penetrants may pass through holes of several different sizes in a variety of substrates in many environmental conditions, and in a fire they may remain a rigid solid, may melt, or may be consumed. A variety of sealants and materials have been developed to meet the demand for these life-saving through-penetration firestop techniques.


    firestop, fire retardant, intumescence, sealant, through-penetration

    Author Information:

    Ackerman, E
    Laboratory Manager, The RectorSeal Corporation, Houston, TX

    Committee/Subcommittee: C24.15

    DOI: 10.1520/STP15684S