Ideal for firestopping applications in walls and floors, BOSS Product's 816+ Firestop Intumescent Sealant is easy to apply and clean up, making it a practical option for contractors and installers. It features built-in biocide protection against mold growth and has been rigorously tested to meet ASTM and UL fire resistance and acoustic performance standards, including UL 1479, UL 2079, and ASTM E-84. The sealant also achieves a high Sound Transmission Class (STC 65), making it suitable for sound-sensitive environments.
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