- Description
3M Fire Block Sealant FB 136 is a one component, non-combustible draft, smoke and fireblocking 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. 3M Fire Block FB 136 has been evaluated by the UL evaluation report ER9700-01 and complies with the International Building Code (IBC) and International Residential Code (IRC).