This Great Stuff Gaps & Cracks Filler Foam Insulation is perfect for all your sealing needs. The spray foam insulation is designed to effectively seal gaps and cracks up to 1 inch in size, providing an airtight seal for your attic or loft. Made from high-quality foam material, this insulation foam sealant ensures optimal insulation for your home or business. With a 3.7 insulation R-value, this spray foam insulation provides superior thermal insulation to help reduce energy costs. The item is brand new, in a sealed package, and has not been modified in any way. Whether you are a contractor or a DIYer, this spray foam insulation is an excellent choice for all your insulation needs.