[quote=Oddball]Thanks for the replies so far, and the reference to the blister article. I have been around (big) boats most of my life and am very familiar with the blister issue in fiberglass hulls. But this is not that. This 28-year-old boat has literally been in the water maybe a dozen times in its entire life, and was always pulled out and covered. If I'm to believe the former owners, it never even got wet from rain until the last few years when it was stored outside. Boats with blisters develop them over many many years of continuous immersion.
Again, I'm at a loss for words to describe this phenomenon properly. The relief map analogy is about as close as I can get. There are 'rough' areas along the hull. You can see then when you sight down it, and feel them. The roughness formed on the inside. It's almost as though the resin 'went off' too fast, or it curdled or melted the foam and re-hardened ? or something. For what it's worth, the boat was stored in the high desert and the affected hull would have gotten more 'cooked' in the sun than the rest of the boat.
Also again, pretty sure the only fix is a new hull, so I'm probably just going to live with it. I'd just like to know why some hulls do it ? and some sides of hulls ? while the rest of the hull remains okay. [/quote]
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