Re: Hull Blisters - need repair?
(I think I saw the horse twitch.)
RufNutt
You're correct on the freezing, it could cause the blisters to get larger if they were still full when that time of year arrives, it's spring right now though, so we have time.
Your hull was different than most, it's not common for someone to be able to peel the top layer off with a scraper, that's why peelers were developed.
As you learned on yours, it's an all or nothing project, you either dig in and fix it correctly right from the start, or do nothing, because half way attempts are of no value. You should post some pics here of your hull to show what the laminate looks like under the gel coat.
Is it worth doing a complete blister repair of removing all the gel coat and affected laminate below the waterline and then rebuilding the surface to this owner...that's for him to decide, there's no right or wrong either way.
If it were mine I would probably dig one out and look at it just because it would bother me, then maybe after inspecting it just leave it, or do a temporary patch on that one spot, but this would cost me nothing except the time to do it. I would never do a complete blister repair on the hull because I don?t want another project that will consume a great deal of time and money, but another person might choose to do it, either way is fine.
If the OP is going to pay someone else to dig out a blister to inspect it, then fix that spot, the cost may not be worth it, but depending on the value of the boat and the depth of the pocket book an owner may decide to do it. To pay to have all 7 or 8 blisters repaired if the hull has an actual blister problem is the waste of money.
On a couple of occasions I?ve found a reason for some blisters that were different. One time when doing some warranty work for a company I found that sunflower seed husks had caused the blisters. An employee had been eating them while it was being built and they had dropped all over the place. Other times it was due to an employee that would sweat a great deal, on very hot days the drops of sweat would form blisters where ever he worked.