10 OZ, SeamerMate Sealant, Sealant Forms A Watertight Seal In Small Joints & Narrow Seams, Guaranteed Adhesion To All Metals, Glass, Vinyl, Brick, Stone, Concrete, Wood & Plastics, Basic Uses Include Sealing Aluminum & Galvanized Gutter, Downspouts, Miters & Endcaps, Carb VOC Compliant.