Passport 42 rust blister above water line

[David Hartman]

Hi all 

Greeting from Fiji. Wondering if anyone else has run into this issue. Anahata has developed small blisters above the water line. They develop rust stains. I can get rid of the rust stain by straying them with Oxolic Acid but the reappear a coupe of weeks later. They vary in size but most of them are about the size of a Dime or less. I have had numerous people have a look at them and when i hauled out in Tonga last year we popped a couple and they were dry and did not smell. the boat yard guys here thought it had to do with the lay up process.The other oddity is they appear to be in lines about an inch above and below the horizontal groves in the hull.  FYI no blisters below the water line.

all thoughts welcome.

cheers

David

sy ANAHATA

passport 42

 

[ga...@sailsidetrack.com]

Hello David, we have not had this problem with our P42 and I have not heard of anyone else.  Possibly an accidental dropping of steel particles on the gelcoat during lamination?  You might be able to check for embedded steel with a strong magnet.

Gary Wilson

P42 Sidetrack

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[David Hilliar]

Hi

When I had the survey done on Ace (Passport 42) they surveyor noted some small blisters at the waterline, he said they were typical of boats that spent time in the tropics and were not a underlying problem.

"It was seen that the blue boot top had numerous small gelcoat blisters which contained no

fluid (see photo below). These are consistent with gelcoat blistering found on some vessels

that have spent time in the tropics or places with very warm or brackish waters. It is

RECOMMENDED B that the boot top is sanded back and gelcoat holes faired with an epoxy

based compound before repaint the area."

Above is his comments and recommendation.

Are you coming to New Zealand, would be interested in meeting wit you if you do.

David

P42 Ace

[John Baudendistel]

Hi guys.  Yup those dime sized blisters are consistent with the polyester resins used in the mid 80's.  Sand down, epoxy fill, prime, bottom paint, splash back in the water.  Also, note when you haul the boat the pressure is changed on the hull, allowing expansion of underlying blisters.  You may get more in warmer water than in cold water.  

John Baudendistel

Dream Keeper 

P42

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Thanks, 

John Baudendistel

jo...@ets247.com

[David Hartman]

hi David

thanks for the suggestions. Sound consistent what every one I have shown them to thinks. I think I will do a test area. its over above the wter line but so wide spread would need to spray the entire hull above the waterline. 

At the moment I am up in Fiji and am leaning to staying up here for cyclone season. New Zealand is very expensive (NZ$1500) to visit with my cat Buddy. Have been speaking to a lot of sailors who have been here for years they just go and hang out in  the Mangroes behind Denarau.

thanks David

sy ANAHATA