Hi DMoring
The carbon section and fibres are very UV-resistent. If the outer coat of carbon laminated structur peals off, it most likely only a cosmetic problem, because the carbon itself is UV-resistent, but not the epoxy resin. the epoxy rersin will peal off, if not protected with paint, when it is directly exposed to the sun.
don't worry about the mast, there isn't one breakage what I know of (in Switzerland and Italy)
>I'm looking at a 2002 F18HT
It is a good boat. Fast and lite!