Originally Posted by Jcolman
The largest blisters are maybe 1/4" deep
and there is nothing but smooth glass underneath. The yard owner took a look at my hull
and said that "your boat isn't going to sink so no worries if you want to put it off until next haul out".
My problem is that the boat is now 4 hours from me. I plan on bringing it down to my home port in July and once there, it will be a lot closer to home. Whenever I have a couple spare days, I drive up and work on it but I don't have a week to spare to sand the hull
I may take my dremel tool
and sand down a few of the larger blisters and fill them next week just to get a feel for the job.
When I bought the boat last December, I did a short haul and the surveyor did a tap test on the hull, pronouncing it "solid"
Dremel tool: Not enough for the job really, too slow. You need a 2" air grinder and/or can even use a 3-4" electric
on the big blisters if you are handy with it. If you attack this job aggressively you'll get it done in short order. Use abrasives that are like 40 grit... the rough surface is a good thing for adhesion anyway.
1/4" deep blisters on a cored hull is getting worrisome to me. Time to save the boat. Not sure how thick those hulls are on the outside layer but I might guess only 3/8? I think I would want to grind all the blisters out at this point, dry and fill and then roll on 2-3 thick coats of epoxy
resin. This may get you 10 years if the core
is dry or only damp.
Surveyor: If a surveyor only tapped a little on an old cored hull and called it good I would be going after him for some compensation. He should know it's a cored hull. He should have been all over this like Oprah on a baked ham. No blisters at survey
? Someone must have filled them in quick and sold the boat. Bummer.