99112831 Great Stuff Fireblock Foam Sealant 12 oz

• Expands to fills, seals, and insulates gaps up to 3/4 inch
• Adheres to wood, metal, masonry, glass and most plastics
• Impedes spread of fire and smoke through service penetrations2
• Tested according to ASTM E84, ASTM E814 (modified), UL 1715
• Seals service penetrations between floors
• Seals electrical runs through wall studs
• Forms a long-lasting, airtight and water-resistant barrier
• Tack-free in 5-15 minutes3, trimmable in one hour
• Orange-colored foam for easy identification and inspection
• Cures rigid in 8 hours
• All-direction dispensing
• UL classified

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.