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.
Impedes spread of fire and smoke through service penetrations2
Forms a long-lasting, airtight and water-resistant barrier
Orange-colored foam for easy identification and inspection
All-direction dispensing
Closes gaps and cracks, increasing the comfort and energy efficiency of your home
Bright orange for easy code identification tested according to ASTM E84, ASTM E814 (modified), UL 1715
One 12 oz can up to 19 tubes of caulk
Exceptional adhesion to most building materials