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/ ***************************************************************************Received on Wed Apr 16 2003 - 19:24:40 PDT
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