Great Stuff Smart Dispenser Multipurpose Black Insulating Foam Sealant fills unwanted gaps and cracks, can be used across multiple applications, and blends into the surrounding environment. This ready-to-use, minimal expansion polyurethane insulating foam sealant fills, seals, and insulates gaps up to 1″. It expands to take the shape of gaps and cracks, creating a long-lasting, airtight, and water-resistant seal.
Great Stuff Insulating Foam Sealant is tack-free in 5-15 minutes and ready to trim within 60 minutes. It helps reduce unwanted noise and vibration and is a simple way to minimize unwanted air flow and reduce condensation. Perfect for interior and exterior air sealing projects, including joints and penetrations, air conditioning lines, refrigerant lines, gas lines, sidewalks, porches, RV and vehicle undercarriages, HVAC applications, trailer/transportation repairs, marine sealing, and flotation applications.
• No drip, reusable, all-direction, precision Smart Dispenser
• Black in color, blending naturally into the surrounding environment
• Adheres well to stone, often eliminating the need for a caulk adhesive
• Adheres well to rock, wood, metal, masonry, glass, and most plastics
• Paintable, stainable, and sandable
Before You Order
Confirm the gap is no wider than the listed 1 inch and that the substrate is among the stated compatible surfaces; account for foam expansion, trim timing, ventilation and whether the black finish suits the repair.
Frequently Asked Questions
What gap size is listed?
The source says this minimal-expansion foam fills gaps up to 1 inch.
How soon can it be trimmed?
The source says it becomes tack-free in 5–15 minutes and is ready to trim within 60 minutes.
