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  #11  
Old 06-25-2009
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Quote:
Originally Posted by badsanta View Post
It is my understanding that all fiber glass boats absorb water and if left in the water for years ...
I do not believe this to be true, although it is true that leaving a boat in water for years significantly increases the chance that it will develop blistering...but that is not guaranteed to happen.

OR IS IT? I assume many boats without barrier coats live for years in locales like Florida without blistering...but what do I know, I live in new England. Can any Florida posters clarify whether blistering in a year-round-environment is a common exception, or a rule?
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  #12  
Old 06-25-2009
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Whatever you do, you cannot completely protect fiberglass. Whtever you apply will cause water to penetrte to it. Gellcoat is permeable to some extent, Epoxy is better but not waterproof. For blistering not only water but some chemicals are also needed. They are generally present in the plastic of the hull. It depends on their quantity to bond with water and form blisters. That means osmosis is not the real reasonof blisters but the chemica reaction with water and the chemicals inside the fiberglass.

The amount of water in the hull is not as much as it is thought. A dry hull has a maximum of 1 - 1,2 % water in its content. The maximum is something like 3%, which means the boat will be heavier maximum 3% of its hull weight.
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Old 06-25-2009
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Why be as good to your boat as possible, since you have stripped now? (It maybe the last time is it ever in that state.) Go with several coats of Interlux 2000e (barrier coat) and then ablative paint. Follow the timings that are required.
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