RUSTOLEUM Leak Seal Spray Coating, 12 oz Container, Aerosol Spray Can, Black , Semi Gloss, 4 to 8 sq-ft, 200 deg F, 612 g/L VOC, Solvent

LeakSeal repairs and prevents leaks on a wide range of demanding surfaces. This rubberized coating seals cracks, fills small holes and provides firm-but-flexible protection against moisture and rust on surfaces that need it most. It is great for gutters, roofs, flashing, ductwork, PVC, masonry, concrete and more. It seals leaks and cracks water-tight and leaves a paintable finish.