A firestop putty used to prevent the spread of fire, smoke, toxic fumes and moisture for up to four hours.
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Moldable Putty+ Sticks
3M Fire Barrier Moldable Putty+ is a one-part, halogen-free product designed to firestop electrical outlet boxes and a wide variety of through-penetrations including cable, conduit, insulated pipe and metal pipe, which penetrate fire-rated construction.
