tooling-gel coat ate through the clear paint and primer underneath so my question is which paint can I use that won't be eaten by-tooling-Gelcoat? help

PS:
here is the image what the boat prototype looked like when applying the 2k primer without hardener



thats what it looked like after using the release agent stripping it and sanding it down again


after the mould did not come off clean, I repaired and recoated the lot with 100gsm fibre epoxy and 2K car paint primer and acrylic


and voila after another infusion from a new made mould it worked



Expensive fun but very satisfying once you get there, much more work to do for me from there