Originally Posted by sww914
The OP has stated that the boat is already painted with Imron. I am talking about repairing the damaged paint that is ALREADY ON THE BOAT.
It is exactly this that can be a problem. Overpainting with something not compatible.
Check using the method I described to see if you get a reaction. In the worst case it will look like you painted it with paint stripper.
I was in the vehicle refinishing business through the 60s - 90s and dealt with two packs / isocyanates / acrylics etc.