I know raw kevlar is hygroscopic, and some epoxies can absorb water before full curing. I don't think fully cured epoxy will absorb water. >Someone in RBP asserted that kevlar boats absorb water and gain weight >over time. After some research, I found a website that aserted that >both kevlar and epoxy resin are hygroscopic and require careful >preparation in laying up. >I know sailors put epoxy on their bottoms to >seal them against water absorbtion and blisters. Hmm...do you think this would stop wetsuit "diaper-rash"? Shawn -- Shawn W. Baker 0 46°53'N © 1999 ____©/______ 114°06'W ~^~^~^~^~^~^~^~^~^\ ,/ /~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^ baker_at_montana.com 0 http://www.missoulaconcrete.com/shawn/ *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
I have a Kevlar-Carbon boat and I can vouch for the fact that it's ALWAYS heavier after paddling then before. The longer the paddle, the heavier the boat. Headwinds also increase the weight. -----Original Message----- From: owner-paddlewise_at_lists.intelenet.net [mailto:owner-paddlewise_at_lists.intelenet.net]On Behalf Of Kenneth Cooperstein Sent: Monday, December 06, 1999 7:33 AM To: paddlewise, paddlewise Subject: [Paddlewise] Kevlar boats gain weight? Someone in RBP asserted that kevlar boats absorb water and gain weight over time. After some research, I found a website that aserted that both kevlar and epoxy resin are hygroscopic and require careful preparation in laying up. I know sailors put epoxy on their bottoms to seal them against water absorbtion and blisters. Has the RBP poster jumped to an erroneous conclusion or will a properly made kevlar boat actually absorb water and gain weight? *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ *************************************************************************** *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************
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