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3M 4" Fire Barrier Tuck-in Wrap Strip

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Product Details

The 3M™ 4" WS 400 Fire Barrier Tuck-in Wrap Strips are intumescent wrap strips that are primarily used in top-side firestop installations. We engineered these fire wrap strips to help eliminate the need for retaining collars, concrete screws, ladders etc., saving time and labor. They are flexible around pipe, to fill tough areas and gaps, and come with an adhesive-backed label for quick installation.

  • Expands 100x in volume
  • Adhesive-backed label offers quick installation
  • Engineered for top-side firestop through penetration installations on concrete floors
  • Expands 100x in volume



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