Ready-to-use, gun-grade latex-based elastomeric sealant that cures upon exposure to the atmosphere to form a monolithic flexible firestop seal. When properly installed, this product provides up to 4 hr fire protection in tested and listed systems. Firestops construction joints and through penetrations. Available in blue, red or limestone, no mixing required, +/- 19% movement capability. When properly installed, sealant helps prevent the spread of fire, smoke and noxious gas. Remains elastomeric (compression/extension capability of +/- 19%) and exhibits excellent adhesion to a full range of construction substrates. In addition, this product acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly), helps create a smoke seal for systems requiring the optional L-Rating, meets the intent of LEED® VOC environmental regulations, meets international building code (IBC) and other key life safety building code requirements.

3M™ Fire Barrier Sealant, 298.7 mL Net Content, Cartridge, Composition: Calcium Carbonate, Polymer, Acrylic Emulsion, Mineral Spirits, Water, Ethylene Glycol, Iron Oxide, Plasticizer, Ethyl Hydroxyethyl Cellulose, 2-Aminoisobutanol, Quartz Silica, 2-Methyl-4-Isothiazoline-3-One, 5-Chloro-2-Methyl-4-Isothiazoline-3-One, Paste, Red, Low, 8 to 9 pH, 1.45 Specific Gravity, <250 g/L VOC, Latex Base, 1.45 g/cc, Flammability Limit: 0, Evaporation Rate: 1

• Helps minimize noise transfer
• Applied with conventional caulking equipment (excellent caulk rate)
• Halogen-free
• Sag-resistant
• Excellent adhesion
• Paintable
• Re-enterable/repairable