Sometimes there’s no time lose when it comes to sealing leaks. If your boat springs a leak while you’re on the water you have to act fast. Selleys Knead It Aqua is a two part sealant with the consistency of “play dough”. It can plug a leak and set in no time flat. Selleys Blockade is a copolymer rubber-based sealant that can be painted over with water based paints immediately. Selleys All Clear is also a co-polymer sealant that can be applied to clean, wet, non-porous surfaces like metals and glazed materials to seal leaks right when you need them sealed – while they’re leaking. See the product label regarding porous surfaces.