ToobSeal Inflatable Boat Interior Sealer stops slow seam leaks and porosity using an extraordinary self leveling acrylic based formula. Our sealant is for use with Hypalon and PVC inflatable boats, whitewater rafts, pool toys, towables and snow tubes. Our safe and easy to use sealer adheres to the interior fabric of the tube, sealing slow leaks and prevents potential leaks from arising. Hard to find leaks are treated and cured from the inside.