Consider this possible scenario: Boats come down from a great altitude (already at low pressure), and get heated. The "air tight" hatches allow gas molecules to escape gradually as they heat, keeping the pressure inside aqpprox. equal to that outside. When they cool upon being put in the water, the hatches do not allow the pressure to equalize very quickly, and the boats collapse. They might have been OK if they had cooled slowly. Extreme heat will affect the strength of resin, but it has to be HOT, like 150 deg. F plus. If your boats are getting this hot in the sun, they are the wrong colour for where you live! I find I like to leave my hatches off when I travel or store my Pygmy Coho anyway, both to allow the pressure inside to equalize, and to keep the rubber seals on the hatch rims from taking a set. Of course, I transport it upside down. Have fun. Rob. *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
"Lew Warden" <lew.warden_at_verizon.net> wrote: > The Britts are just way ahead of the rest of the market, again so humble oppinion. They do have some fantastic designs--and the Pintail is an "older" design, even! Where some would knock the Brits is in their level of sophistication in construction. I think the Canadians have most everyone beat here. >GRO is standing 100 % behind the problem and are sending replacements. That is great news!! Brian Curtiss <bc_at_asdi.com> wrote: > Where the color may have hurt is in the strength of the hull. Does a fiberglass (or carbon fiber or kevlar) layup get weaker when heated to 100-120 degrees or so? Polyester resin is fairly stable at relatively high temperatures (above 200ºF). Epoxy resin is not so heat-stable, and can start to soften at as little as 160º-180ºF. shawn __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
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