I have a 12' fiberglass fishing boat and im pretty sure the gel coat is either absent or very thin. Would a primer be suffice or should i gelcoat it before priming? its just a small fishing boat so it will be trailered.
As u can see its pretty under the weather. ive been sanding and patching for three days. yesterday i filled it up with water and it seemed as if some spots were "sweating" water through the hull. Im pretty sure the gel coat is non existant right now.