Rust-Oleum® LeakSeal® Brush is an easy to use, rubberized protective utility coating designed to fill and seal leaks and cracks. It provides a water-tight, flexible seal that prevents moisture penetration, rust and corrosion.

Great for gutters, roofs, flashing, ductwork, PVC, masonry, concrete and more
High build formula that seals leaks and cracks instantly
Ideal for filling large problematic and hard-to-reach areas