I am taking my boat off the trailer to paint the bottom.i am looking for the best possible product where I have some minor leaks as well.I cant find any loose rivets.it looks in really good condition.i have heard some people using flex-seal-truck bed liner-gluvit-5200.etc. has anybody done this before with success.i don't want to remove all the flooring.the cabin is a tight fit artea for me and sealing from the outside is much easier.