3M Fire Barrier Moldable Putty Stick is a versatile, easy-to-use firestop solution that can be used to seal a variety of openings and penetrations in walls and floors. It is made of a moldable, putty-like material that can be shaped to fit any gap or opening, and it hardens to form a fire-resistant barrier that helps to prevent the spread of fire and smoke. This product is suitable for use in both commercial and residential settings, and it can be used to seal around electrical and communications cables, as well as around pipe and duct penetrations. It is tested to ASTM E814 and UL 1479 standards, and it is UL Classified for up to 4 hours in both concrete and gypsum wall assemblies.Hoodie in sweatshirt fabric made from a cotton blend.
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