Inflatable Boat Sealant Kit Stops Slow Leaks! Inland Marine Sealant is specially formulated for use with inflatable boats, rafts and tow toys. This sealant forms a bond with the interior fabric of the inflatable, stopping or "sealing" slow leaks and preventing future leaks from developing. In one easy step, leaks are cured from the inside, which are virtually impossible to find from the outside. Inland Marine Sealant is the only product of its kind which allows for future deflation of your inflatable (for storage, etc.) without the skin sticking to itself and making re-inflation virtually impossible. This is why Inland Marine Sealant has earned a 5-Star product rating from West Marine, and is has been used by the US Navy and Yachters worldwide since 1986. If you are having a difficult time locating the leak in your raft, kayak, tow toy, or dinghy, you need to use Inland Marine USA Sealant, because our Sealant is especially helpful in fixing those difficult slow leaks that are not easy to find. Our Sealant provides a strong bond that should last for years when applied according to the easy instructions. It will seal the leak(s) and keep your inflatable firm for years to come. And Inland Marine USA Sealant can be used multiple times, so if your inflatable develops a new leak weeks or years from now, you can use the sealant again!