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AR15.COM
11/5/2025 4:41:11 PM EDT
Hey guys, my boat rebuild is 99 percent complete.  Bilge, live well, lights, motor and auto anchor all installed and tested.  Did a good cleaning/ vacuuming of the entire boat and cleaned the bilge eject area ( the top of the transom in my boat).  Wrapped the boat up for the winter and I'm gonna do a good clean on the seats at home.

   During the bilge testing , I filled it with a hose and noticed water dripping out ( very minor) at the seams at the top and way bottom of the transom.    Looks like old caulk started to give out.   I'm looking for good stuff to reseal accessible joints.  
    Is flex seal the way to go ?  Something else ?   I'll apply it in the spring but wanted to get an idea of what to look for.
 Thanks.  
 

https://photos.app.goo.gl/Q59abuRemLnsMTEh6

https://photos.app.goo.gl/aLbTMJD2n5wGq7Gt9

https://photos.app.goo.gl/3QGzHyKAKxHY5TQK8
11/5/2025 8:20:28 PM EDT
[#1]
5200

https://www.3m.com/3M/en_US/p/d/b40066983/
11/7/2025 2:19:51 PM EDT
[#2]
3M 5200 like Posted above. There's a "fast cure" 5200 as well. Both work well. Make sure to clean out the old caulk and clean the areas to be sealed with acetone.
...behind every blade of grass...
11/7/2025 4:04:07 PM EDT
[#3]
Didn't think about acetone.  I'll definitely do that.  Pretty happy about the progress so far.   It's been piece by piece for 3 yrs or so.

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