Product Information Department wrote: > I also use an Aquapac waterproof baggie on both my "waterproof" radio and > my "waterproof" GPS. The one downside is the "greenhouse effect". In sunny > weather, UV penetrates the transparent top, is absorbed by the "black body" > of the GPS housing, then remitted as heat and trapped by the baggie, which > can puff up alarmingly as a result. Suspecting this could strain the > baggie's seams, I squeeze as much air as possible out before sealing the > GPS into the baggie, and keep the whole thing tucked under my deck bag > unless I'm actively using it. I thought about this last year, both in terms of waterproof baggies and the pressure in hatches in kayaks. I wonder if a patch of Gore Tex would allow enough breathability to vent the pressure without admitting water? Of course attaching the Gore Tex securely will be an issue... Anyone know the air (not water vapour) permeability of Gore Tex? Mike. *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.gasp-seakayak.net/paddlewise/ ***************************************************************************Received on Tue Feb 23 1999 - 08:22:42 PST
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