Exterior/interior use on gutters, roofs, flashing, ductwork, PVC, masonry, concrete and more. Oil-based formula seals leaks and cracks instantly with a flexible rubber coating. Flat finish can be top-coated with latex or oil based paints.
Stop Rust and Corrosion: The rust neutralizer turns the rust into a hard black layer and gives the treated rust a glossy sheen, leaving paintable surfaces.