bottom paint problem

[shamrock77]

have a 1985 25' fiberglass boat, bought it 4 years ago. pulled it out of the water today for winter storage and just like the previous few years the bottom is full of bare spots and pock marks. Last sping we used acetone on the bare spots and lightley sanded rest of hull and made sure it eas dust free before it was painted with VC17. Should I strip the hull completely in the spring and start over? Has anyone else seen this before?

[georgefmys]

VC-17 can be very unforgiving .Not compatible with most other paints,and is typically applied in very thin film thickness. Has Teflon,maybe adds to difficult self adhesion? I like epoxy barrier coats or at least an adhesion primer ,then 'hot-coat' with antifouling-yes, scrape all paint off first[will prob fall right off!]

[shamrock77]

Thanks for your reply, that's kinda the information I'm looking for and is about the same answer I got from the local marine hardware store. As boats are being pulled out for the season at the marina we are at I have seen a couple others with a simalar situation. I guess I know what I'll be doing first next spring.

Thanks again