| FLEX SEAL is a rubberized sealant spray coating that sprays out as a liquid, seeps into cracks and holes and dries to a watertight, flexible coating. It's the easy way to coat, seal, and stop leaks fast. Excellent for: Roof Leaks, Gutters, Skylights, Windowsills, PVC Pipes, Flashing, Duct Work, Foundations, Awings, Chimneys, Downspouts, A/C Drip Pans, RV's & Campers, Trailers and so much more! | Compare prices2→ |