Rex Roberton wrote: > > Are there any adhesive experts on the list (Chemist in the industry or > anyone otherwise knowledgeable) who would know if there is really any > difference between the contact cements like Weldwood and the so called > marine contact cements sold by kayak shops? Weldwood is in the hardware > store two blocks away and Perception's cement is at the kayak shop 30 miles > away. I know some on the list have used Weldwood in their kayaks, how has > it held up? Dave Kruger, you mentioned in a post almost two years (Oct. 98) > ago that you used it for adhering velcro to foam. Does it hold up for a > season? Longer? Velcro to minicell foam, at least two years, sans abuse. Velcro to surface of a Thermarest pad, three years, also sans abuse. Neither shows any signs of loss of adhesion. Velcro or minicell **to polyethylene** (such as in typical WW boat), can peel off the PE after a year or so, unless you are vigorously aggressive in roughing up the PE. Caveat: there **may** be some difference between the Perception stuff and Weldwood, though I bet it won't make any difference except for rare applications ... read on. Funny you should ask about Weldwood today. I may be about to have my first serious Weldwood failure. Long story short: I had some Shore Adhesive (full-on stuff used to adhere Hypalon patches to serious WW rafts) that seems to have died in the can. That stuff glues Hypalon like nobody's business! Got in a bind and thought, "Well, this is a low-stress application ..." and I slapped Weldwood onto the hull of my Folbot. I think Hypalon may not allow Weldwood to adhere well. I'll find out tomorrow, if the keel strips peel off. If they do, you'll hear of it, Rex, 'cause I will be a little south of Tacoma, WA, and my bellow should be detectable in Seattle. <G> -- Dave Kruger Astoria, OR *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced/forwarded outside PaddleWise without author's permission Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Fri Aug 18 2000 - 22:35:36 PDT
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