Rust-Oleum Black Leakseal Flexible Rubber Sealant 12 oz

Rust-Oleum LeakSeal is an easy to use, rubberized protective coating designed to fill holes and seal cracks. Creates a water-tight, flexible seal that prevents moisture penetration, rust and corrosion. LeakSeal dries to a semi-smooth, firm finish that will not sag or drip and can be top-coated with latex or oil-based paints.