Bottom Problems - Need Advice

BobCT · Post by **BobCT** » Thu Dec 22, 2011 7:47 am

do nothing. Maybe a spot clean up if it's a manageable number and leave it at that. Pascoe did quite a bit of writing about blisters and his conclusion was that they are never fatal. I've read that from others as well. Also, be mindful of bildge water... there's evidence that blistering can be caused by water from INSIDE the boat.

$7k is a lot of money on part of the boat that nobody can see. Not that everything has to be a cosmetic home run and I wouldn't say the same if it was a safety/reliability issue.

Bob

Big D · Post by **Big D** » Thu Dec 22, 2011 6:54 pm

I would say that where he lives, the hull goes through a deep freeze over winter....not good for a hull with fluid filled blisters. They can expand, take on more liquid and make a mess of the hull when they finally start shattering chunks off the bottom from frost expansion. This is usually when the customer finally comes around to do the job you quoted a few years prior then is shocked when you tell him it's going to be a lot more costly due to the additional damage.

jimbo36 · Post by **jimbo36** » Fri Dec 23, 2011 11:20 am

k9th, If your man has done several over the past ask for the names of those done a few years ago for referrance. I do several bottom jobs at our marina every year and as you have probably noticed from the posts here, there is most definatly a right way and a wrong way to do the job. jimbo36

prowlersfish · Post by **prowlersfish** » Fri Dec 23, 2011 10:37 pm

Good read on this

http://www.zahnisers.com/blisters_hydrolysis.htm

k9th · Post by **k9th** » Fri Dec 23, 2011 10:57 pm

Great article - thanks Paul. Looks like my quoted price is right on the money.

Big D · Post by **Big D** » Fri Dec 23, 2011 11:09 pm

Good article Paul, very comprehensive. Their ultimate solution though is impractical. I agree with the vinylester and like epoxy, you must know what you're doing. But epoxy is still a better barrier against water intrusion, lighter, and stronger. We didn't touch on it here but the article brought up a good point about the implications of not taking care of a blistered hull that is cored.

prowlersfish · Post by **prowlersfish** » Sat Dec 24, 2011 9:08 am

Maybe too comprehensive. I don't fully agree with there "fix" of removing gel coat and some of the glass , But they will guaranty it for 10 years. many don't guaranty there work , This is a very high end marina that has a first class yard . We had a get together there last year . Parts dept is very helpful too .

The use of vinylester instead of epoxy or a barrier coat like interlux is interesting , and sounds like it maybe the best choice . It seals almost as good as epoxy But sticks to polyester better .

Epoxy is lighter then vinylester ? Did not know that ( missed it ? ) I know vinylester is almost as strong . and more flexible ? ( per what I just read )

There is lot for my brain to absorb

Trojan Boat Forum

Bottom Problems - Need Advice

your other option is....