smj is correct - and frankly, there are not many production boats that are laminated with epoxy resin. Having said that, I seem to recall
reading that there is a way to cover epoxy resin with gelcoat
(particularly for small areas). Indeed, WEST may have some instructions available.
Even if they do not, the other option (since it is a small area) is to cover it with gelcoat
once you have removed all the blush. Even if the adherence is not perfect, if there is no flex in the area I suspect that it will hold up reasonably
well; in any event, it will be a cosmetic and not a structural issue. I suspect that coating with gelcoat and then sanding
to blend in with the rest of the hull
will be easier than attempting to match the gelcoat with a polyurethane paint
and then attempting to deal with the overspray.