Great Stuff Smart Dispenser 12 oz. Fireblock Foam Sealant

Great Stuff Fireblock Insulating Foam Sealant is a ready-to-use£? minimal-expansion insulating foam sealant that fills and insulates gaps up to 3/4 inch to restrict airflow. This distinctly orange solution seals electrical wiring run through wall studs as well as service penetrations in walls and between floors to provide a simple£? cost-effective way to maintain the continuity of an approved fire block material throughout the house.

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