hi, my wings have suffered from being out in the elements for too long and have got white marks on. AFAIK, it's got to be the gel coat and it appears, initially to buff out, but then it comes back really quickly? so, what's a better fix? to 1000 grade it, buff it, and then polish the whole thing?
Any tips on buffing machines (using a drill with a foam end on it*) and compounds (autoglymn) please.

Thanks,

*but enough about my love-life.