i know this topic comes up quite a bit but i could really use some suggestions. my boat is leaking and i think ive narrowed it down to the keels, both the center and right side. i havent been able to narrow it down to any particular rivets. would it be worth it to remove all of the rivets from the keel, seal the keel with 3M 5200 and re-rivet the keel? id like to use SS nuts and bolts except that i have a new deck in the boat and cannot get to the inside of the boat without ripping out the deck. would a closed end blind rivet be strong enough? any help/suggestions would be appreciated. thanks, mark