Great Stuff Insulation/Expanding Foam Fireblock Gap Filler- 3 Pack

IMPEDES SPREAD OF FIRE. This ready-to-use, minimal-expansion insulating gap filler expands up to 1" inch to seal service penetrations and provide an airtight barrier that impedes the spread of smoke and flames. CODEAPPROVED ORANGE. This distinctly orange spray foam makes for easy identification for inspection. DISPENSE SMARTER. Securely thread the Reusable Smart Dispenser and leave attached to the can to seal projects for up to 30-days. Insulating foam stops as you stop for clean, easy, no-drip dispensing and increased precision with more control. SPRAY ANYWHERE. Slow the spread of fire and apply in a variety of places, both indoors and outside, such as electrical runs through wall studs, piping, cable, duct penetrations and more. Adheres to wood, metal, masonry, glass and most plastics. LOWER ENERGY BILLS. Increase your home's energy efficiency by stopping air leaks, which account for 25 40% of HVAC energy costs. This expanding foam forms a long-lasting, airtight, weather-resistant seal keeping unwanted air and moisture out.