by GreenLake » Tue Sep 20, 2016 8:04 pm
Get the boat out of the water, remove the entire patch (grinder) and check out what's underneath.
If it's attempting to cover a crack, or damage laminate, remove to clean laminate, bevel 1:12 and patch properly (see instructions by West System or SystemThree on their websites).
You don't write whether the patch is on the inside or outside of the hull and how "near" the transom it is. If water is seeping in, and it is in the hull between the seats, then the hull is penetrated by a crack. A proper fix is indicated (and not actually hard).
Sure, it takes a few more steps than just slapping on some magic goo, but even relative beginners can get it done correctly, if following the written instructions to the letter, (particularly when it comes to measuring and mixing epoxy resin).
~ green ~ lake ~ ~