Multipurpose Black Foam is ready-to-use, minimal expansion polyurethane insulating foam sealant that fills, seals and insulates gaps up to 1 inch. It expands to take the shape of gaps and cracks, creating a long-lasting, airtight and water-resistant seal. Black in color, it naturally blends into the surrounding environment and is specifically formulated for both indoor and outdoor use. This multipurpose formulation can be used to fill gaps and cracks around the home, and in marine and automotive applications. GREAT STUFF Multipurpose Black Insulating Foam Sealant is a simple, inexpensive way to minimize unwanted air flow and reduce condensation, and it can be used in many applications. Introducing the new patient-pending GREAT STUFF SMART DISPENSER The next generation of foam sealant dispensing is a game-changer. Reusable for up to 30 days, now use it again and again! No drip dispensing, eliminates mess. Easy to use, greater control. Fill gaps efficiently and quickly. Size 12 ozs.