Loctite, 12 OZ, White, Tite Sealant, Polyurethane Based Insulating Foam Sealant, Expands To Fill, Seal & Insulate Gaps & Cracks Inside Or Out, Provides 4X More Density For Excellent Adhesion On Most Building Materials Like Wood, Concrete, Stone, Metal Etc, Does Not Contain CFC-Propellants.