Coat-It is typically used on Aluminum Boats. What exactly are you trying to repair?
Another problem I recently noticed on the boat is that the windshield doesn't close. It overlaps by about a half inch, does that mean that the boat is warped?
Back up............ Please post some more info on this:
AND a roller pushed up THRU the hull?
What is all this loose stuff:
Also what's all that ^^^ covering up whatever is flaking off?
Attempting to 'repair' or cover damage that's hard to even 'see' in your pix, w/ Coat-It and not address the windshield overlap & the flaking material on the hull, may not yield very satisfactory (or safe) results.
Any chance you could post a pix that says: The damage is here? Maybe even highlight it. Sorry but I couldn't really ID anything that was specifically roller damage thru the hull.
It looks like water soaked Bondo to me, I have done enough show cars and trucks. Bondo is not water tight its just a filler and can actually absorb water and when it does it flakes and peels/chips. Grab a plastic scraper like the ones used for trim panel removal on cars and be gentle with it so you don't do more damage to the hull. On the note of restoring the boat I say its up to you and the attachment you have to the boat. I plan on doing my resto with my 2 sons and then passing the boat to them when they are old enough and daddy has a new boat, so to me even if I had to do a complete overhaul and replace everything but the hull and cap it would still be worth the father-son time and the money investment but that just MHO.
Chris