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 In. to restrict airflow. This distinctly orange solution seals electrical wiring running 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.

• Forms a long-lasting, airtight and water-resistant barrier
• Impedes spread of fire and smoke through service penetrations
• Adheres to wood, metal, masonry, glass and most plastics
• Seals service penetrations between floors
• Seals electrical runs through wall studs
• Tack-free in 5-15 minutes; trimmable in one hour
• Tested according to ASTM E84, ASTM E814 (modified), UL 1715