Re: [foldingboats] Folding Kayak--Progress Report
Hey guys, sorry for not having replied sooner, but I just found the reply all button recently (3 minutes ago :-)). And of course thanks for the great answers I got on my first posting on the pouchboats forum. As some of you might remember, I planned to make a north alaska retreival kayak, similar to Peter Copellas boat. I remember that I have seen tube bendinb devices at my local hardwear store, so I'll try to bend the frames out of aluminium túbing. They will be connected to the stringers by ordinary cable binders. (the tubes are allready ordered!) For the hull material I found polyurethane coated polyester (It was dead cheap, so Ididn' t look any further for a nylon fabric). Of course the coating is way too thin to be durable enough. I don't think that it' ll be able to withstand the abuse a boat gets. So here ' s my question: Does anybody have a cheap idea how to waterproof the fabric (one side is still uncoated)? I thought about a thinned 100%silicone sealer for windows? Any comments? Thank you very much in advance. Christian -- Sent through GMX FreeMail - http://www.gmx.net # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
Re: [foldingboats] Folding Kayak--Progress Report
[EMAIL PROTECTED] wrote: ... For the hull material I found polyurethane coated polyester (It was dead cheap, so Ididn' t look any further for a nylon fabric). Of course the coating is way too thin to be durable enough. I don't think that it' ll be able to withstand the abuse a boat gets... So here ' s my question: Does anybody have a cheap idea how to waterproof the fabric (one side is still uncoated)? I thought about a thinned 100%silicone sealer for windows? I suspect thinned silicone caulk would be *very* expensive and wouldn't necessarily adhere too well to the polyurethane coated fabric. That, and finding a suitable thinner would be difficult. I suggest a polyurethane. Industrial supply houses generally have one-part flexible polyurethane coatings sold as non-slip floor coatings. They're tough, stick to themselves and should hopefully stick to your cloth. --- Michael Edelman [EMAIL PROTECTED] http://www.foldingkayaks.org (nomadics) http://www.findascope.com (choosing a telescope) # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
Re: [foldingboats] Folding Kayak--Progress Report
Hi,Lew! Thanks for the comprehensive description. I believe that I can visualize most of what you describe except how the skin will be tensioned longitudinally ... but I'll re-read that section a couple of times before I send more questions. I can't wait to see pictures of the various stages though. Do you have access to a digital camera or a scanner? Also, are you drawing any of this? I think you have succeeded in devising a set of solutions that are quite out of the ordinary! I know that going this untried path is not everyone's cup of tea and that it will at times be trying to complete the project (one boat took me four years of building and thinking on and off), but please keep us closely updated. I suspect that the mere process of explaining to others what you are doing will stand you in good stead!! Best regards, Ralph # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
Re: [foldingboats] Folding Kayak--Progress Report
So here ' s my question: Does anybody have a cheap idea how to waterproof the fabric (one side is still uncoated)? I thought about a thinned 100%silicone sealer for windows? Hans-Juergen Staude used thinned silicone for a couple of years to waterproof spraydeck and deck of his boats. To make the silicone liquide, he used ordinary dish wash solution which seemed to work (it contains a special chemical which name I have long forgotten). If you take this approach, make sure to get marine silicone instead of "ordinary silicone" for windows etc. Hans-Juergen discovered Granger's Mesowax (a liquid wax for old and porous canvas) and stopped using silicone some time ago. You should do some extensive testing with silicone and your fabric (and I'd rather go for Michael's solution). Hans-Juergen reported a terrible mess each time he waterproofed the decks. Happy Yule / winter solstice anyone, Marian Marian Gunkel Rostock, Germany http://www.mariangunkel.de # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
Re: [foldingboats] Folding Kayak--Progress Report
Ralph sez: .. I suggest a polyurethane. Industrial supply houses generally have one-part flexible polyurethane coatings sold as non-slip floor coatings. They're tough, stick to themselves and should hopefully stick to your cloth. ... Hi, Mike! Do you have any practical experience with this stuff? Will it be and remain flexible enough for a folding skin? This definitely sounds like something worth testing asap!!! Do you have any brand names to hand? I've used it... but only on floors ;-) I think it would be worth a try, since it does stay flexible and it's incredibly tough. Don't have any brand names offhand; I think I may have a Granger catalog in the office, though. (Why a computer process manager has a Granger industrial catalog in his office is yet another story ;-) best, -- mike # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
[foldingboats] Hypalon vs. Polyurethane [was: Folding Kayak--Progress Report]
Mike @ SpamCop sed: (Why a computer process manager has a Granger industrial catalog in his office is yet another story ;-) Never mind the weirdness ... you bearded chaps ... ooops I grew one too ... just check with Granger and let us know!! My son (just 6) has been nagging me for his own boat for almost two years. At the end of the summer '99 he splashed around in my plywood Yare (aah, the good ol' days with Chris Kulczicki at the helm of CLC) with some success. I think he's now big enough to handle a scaled-down boat and will try yet another concept of a folder for him once I can make a reasonable case that I need a break from building our addition. THAT's why I need to hear more about floor goop! I object to the principle of the toxicity of the solvents in Hypalon, as well as its practical application ... after a few years with epoxies. I can always kid myself that polyurethanes are less dangerous, right? Ralph # Foldingboats Mailing List - All postings copyright the author and not to be reproduced outside Foldingboats or Foldingboats archives without author's permission Submissions: [EMAIL PROTECTED] Subscriptions: [EMAIL PROTECTED] #
