Posted 09 October 2005 - 07:50 PM
Posted 10 October 2005 - 11:09 AM
Posted 10 October 2005 - 07:54 PM
I owned a fiberglass sailboat a few years back that developed a blister.This boat was 27 ft long,heavy,and at the time about 12 years old and no history of blisters.It also was kept in the water year round.I had the blister repaired by a professional boat yard.It required grinding out the damaged area and refilling with new fiberglass and gelcoat.At the time I remember that almost all fiberglass boats would develop blisters between 6 to 20 years of age if kept in the water for long periods.At this time I did some research to try to understand how this happens.It seems that the pressure of the water pushing constantly at the hull causes molecules of water to penetrate the gel coat and enter the epoxy bond around the fibers of fiberglass.This in turn causes the fibers of fiberglass to swell and then cause an osmotic blister.I hope this helps in laymens terms.Gary
I own a 1999 Speedster twin 110, I noticed this year after recently cleaning the hull it has a bunch of bubble like spots in the gelcoat, I am told it is Osmosis?. I have kept the boat in a marina for the last summer, so the boat has been cont in the water over the summer months, not sure if this is an issue or not but the boats hull should last longer than 5 seasons one would think? I have had no luck with the boat latly and this one just tops it off. Can anyone share any simular situations and if so what can I do about this?Is this something that will not stop spreading? how does this happen?. All I have been told so far is this will be a never ending problem, and that this is due to manufacturing defect.
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