3M 10.1 oz. Fire Barrier Latex Caulk

The 3M 10.1 oz. Fire Barrier Latex Caulk is a one-component, gun-grade, latex-based intumescent firestop sealant designed to help control the spread of fire, smoke, and noxious gases before, during, and after exposure to a fire. It dries to form a monolithic firestop seal that also acts as an effective barrier against airborne sound transmission. Formulated for easy application with conventional caulking equipment, this sealant offers excellent sag resistance and strong adhesion across various construction penetrations. It is water-based, paintable, re-enterable, and repairable, making it an ideal choice for maintaining firestop integrity in commercial and residential construction applications.