3M Gray Versatile Fire Block Sealant - 10.1 oz.

3M™ Fire Block Sealant FB 136 is a one component, non-combustible draft, smoke and fire blocking sealant, designed to resist high temperatures and smoke passage in nonrated construction. Use 3M™ Fire Block Sealant FB 136 to seal interior construction voids around wires, pipes, HVAC ducts and vents, in wood or steel framed non-rated construction. We engineered 3M™ Fire Block FB 136 as a durable fire block and draft stop. This product seals, fills, insulates and bonds.