"mike" wrote

I have seen several examples where someone attempted to remove only
the "bad gelcoat" layer. In a year or two it looked terrible!

Oh, yes, the devil is in the details, isn't it.

There are degrees of bad. If the bad is cosmetic, i.e., scratches and
oxidation, a removal of the surface and reapplication of a compatible (ah,
more details that can be the devil) new layer will look fine.

If there is degradation of the jelcoat to fiberglass/carbon fiber/Kevlar
bonding, then the detail is the devil. Nothing to do but to take it all
off.

This is a case where working with someone that can teach the ins and outs of
fiberglass work can be invaluable, or valuable enough to save many man-hours
and material bucks.
--
Jim in NC