Rivet Repair

I have a 1964 14ft Shallow V Starcraft that I am going to rehab this spring. I bought it five years ago and it's been fine until this past season.
I believe I have a small leak coming from old rivets on the bottom of the boat. My Question Is - what product is best for sealing rivets without replacing??. I've seen products such as jbweld, alumaweld, But I also came across products such as Coat-It or Gluv-It that have received good reviews.
Any recommendations for a reliable sealant or any insight from experience about any other products would be greatly appreciated.  
Thanks!

Is it just one or two rivets that are leaking, or a longer section along a seam?
JB Weld isn't "waterproof", you want a product called "Marinetex"...basically JB that is designed for wet areas.
 
Also, when the sections are riveted together, a sealant is applied to the joint before it is riveted.
Sometimes on older boats, that sealant shrinks from age and pulls away from the rivets. I have read on another forum on old aluminum boats where guys have heated the seam with a propane torch to soften and "re-flow" the sealant in the joint.
HOWEVER, with that being said, you need to be careful with the heat because over heating the seam can make the sealant boil out and cause bigger issues!
 
HTH

You can put the garden hose in your boat to find the leaking rivets, just don't overload your trailer... There are several products that can be used to fix the leaks EM mentioned a good one...

I had the same problem in an older boat I used to own.  Once I found the leaky rivets, I applied 3M 5200 Marine Fast Cure and it solved the problem.  I would put the boat in the water and look close to see where the water is coming in. It should be pretty obvious which rivets are leaking.

Cut a hole in your boat, and replace with a screen door and Flex Seal.  It works on TV, so must be good.

When you guys are talking about JB Weld not being waterproof, are you talking about the regular stuff or the JB Weld Marine?

I used the JB Marine on some screw holes in the transom due to fishfinders. Worked most of the season than leaked again but in all fairness maybe it let go from motor vibation. When Paul used that gutter seal he used the stuff the contractors used and as far as I know he never had any trouble.

Thanks BL that "coat-it" looks like good stuff. 1 one gallon kit should give me two coats, and do it cheaper than even Walmart's version of flexseal. Plus i read you dont need to totally strip it to recoat in the future just rough it up and apply a fresh coat.
I'm seriously thinking about ordering some of this stuff.

Where can you find this coat-it product ? Can it be used on the outside or does it have to coat the inside of the boat ? I just replaced my floors year before so I'd like to avoid tearing them up.

Walleye jigs

Where can you find this coat-it product ? Can it be used on the outside or does it have to coat the inside of the boat ? I just replaced my floors year before so I'd like to avoid tearing them up.

check amazon and ebay too, I've seen it on there.

Another thing to think about if coating the outside, it will slow you down most likely due to the increased turbulence/friction if it isn't a smooth coating that can we waxed or coated.  Not a big deal if you have a big motor but if you are the very edge of planing out on a heavier boat with only a 9.9/15 or so, it could be enough to keep you from getting on plane.