Rust-Oleum 271791 Stop Rust Leak Seal Flexible Rubber Coating Sealant, Black
- Exterior/interior use on gutters, roofs, flashing, ductwork, PVC, masonry, concrete and more.
- High build, oil-based formula seals leaks and cracks instantly
- Dries to touch in 1 hour and covers up to 40 sq ft
- Prevents water and moisture penetration for ultimate protection
- Flat finish can be top-coated with latex or oil based paints
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