Thats not an easy one to answer a simple yes or no to Pete. It does mostly ahve to do with the age of the vessel. The main product of concern was Polyester resin. This product has not been used by most recognised builders for some years now. The product of choice now being Vinylester. However, niether vinylester nor even epoxy
is totaly bullest proof in the protection against Osmosis
Then the next factor of the equation is, how long has the hull
had the problem and to what extent.
Additional questions would be....
when was the hull laid up?
Was it laid professionely, as in a recognised name builder
In the majority of cases, a few blisters
here and there are usually easy to treat by bursting and filling them.
In a slightly worse case scenario, a hull peel to allow decent drying to take place maybe needed, followed by a seal coat of epoxy
. But this is usually the scenario of much older hulls, being laid up in Polyester. It could be said that few of those hulls are around in an untreated state these days. If a problem was going to occur, it most likely would have by now. There are few builders around now that don't know the story of vinylester, so I doubt any recent builds in say the last 10-15yrs should exist.
The only issues that may exist now, are results of a poor layup
That's from what I have experianced and seen around, but then, I don't get involved with that for a living, so I also look forward to the comments from the one or two here that do earn a living from this work.