Sealant kit for inflatable boats Developed to seal slow leaks, Inflatable Boat Sealant positively seals pinhole leaks that are too small to identify and patch. Inject the solution into the inflatable's air chambers through the valves to seal porous areas and inaccessible leaks. Also helps prevent leaks from developing. One kit contains enough solution for a 12ft boat. No need to force air-dry like other sealants. Water-soluble. 32 oz.