pete the cat -
i agree. i hauled out last year and decided to do a really serious heavy sanding
job to remove decades of hard bottom paint. but i couldn't find anyone who did heavy sanding
; they all wanted to do 'gelcoat peeling'. i can understand why.
sanding is hard work. a peeling machine takes off your paint AND your gelcoat
in one $1000 day. then of course you have to put on a barrier coat where your gelcoat
used to be - figure another $1000 - and then bottom paint. the guy insisted i had blisters, and pointed to every paint imperfection as a 'blister'. but i didn't have blisters. so i sanded it myself, and yes, it's dirty hard work. but at least i still have a dry hull (had a surveyor
do a meter reading) and my original gelcoat. and i never found any blisters.
i agree that some boatyards
are selling peeling/barrier coat projects to unknowing boat owners with the threat of 'blisters'....