Interesting data from (finally) reading the (duh) data sheet: * CC is heatproof "up to" 180•F. 150 seems not to be a problem. So much for the desert heat. * Declared coverage of 216 sq. ft./gallon, PER SIDE. I was using about 48 linear feet of 6" hinges, or 96 ft.^2 for two yurts, both sides, or a little less than half a gallon. I used a little less than a quart all up. So, prior theory correct: insufficient coverage. * 15 minutes' dry time called for. I was probably running 6-8 minutes. Second explanation. PS surfaces can be attached up to 2 hours after application. Plenty of head room there.
So let that be a warning to others: use plenty, and give it plenty of time to dry. On to next year! Cheers, Steve On Sep 8, 2013, at 2:38 PM, Jeremy Shaw <[email protected]> wrote: > I believe that is HH-66. H-66 is a readily biodegradable, anionic, phosphate > polyether ester surfactant used a solubilizer for surfactants into > low/moderately built detergents. HH-66 Vinyl Cement is a superior quality, > fast drying adhesive. It is used extensively for bonding vinyl coated and > vinyl laminated fabrics to themselves or to various materials. > > If I do more building or repairs, I'll definitely give the HH-66 a shot. > > - jeremy > > > On Sun, Sep 8, 2013 at 4:27 PM, Gavin Harkness <[email protected]> wrote: > If I were to use CC and vinyl, I'd be following Tom's instructions at > > http://yostwerks.com/ > > I know he's only talking about vinyl to vinyl, but his instructions a very > clear. I've built one of his kayaks and had no problems. Although I've have > no other experience in using CC, I'd personally stick to using H-66. > > > > On Thursday, 5 September 2013 07:54:49 UTC+1, Steve Upstill (Swifty) wrote: > All I can say is that my experience of the vinyl-contact cement was very > different. I did all the work up front in the expectation of having a > years-long solution, only to have my hinges fail: the vinyl simply pulled > loose in the heat of the Playa (some places the vinyl just casually lifted as > if there was no adhesive there in at all), with a tacky substance on both > surfaces that made me wonder how it could have healed at all. Out there, I > patched like mad with bifi, and now I'm looking at doing the whole laborious > job over again next year. Crap. > > So what went wrong? I have three theories: > > 1) assembly problems, i.e., I put the CC on too thickly, or not thickly > enough, or I didn't wait long enough for it to dry, or too long > 2) the heat was just too much for it > 3) because I laid the vinyl on when the panels were lying on the ground and > abutting, actually folding them over the rest of the way put too much tension > on the hinge. I did it fairly tight because I wanted some tension in the > structure. > > If anybody has any information that would help me figure out which theory is > correct, I'd be enormously grateful. Could others chime in with their > experience? If I'm the only one with failed hinges, that pretty much disposes > of theory #2. Also, did people tape over the vinyl with aluminum tape? I'm > thinking that under theory #2, the shiny stuff would go a long way to keeping > the heat down. > > Thanks, > Steve Upstill > > On Sep 4, 2013, at 7:47 PM, Jeremy Shaw <[email protected]> wrote: > >> I built two 6' folding stretch hexayurts this year. One was a traditional >> design with camp danger bifi hinges. The other used contact cement, vinyl, >> and velcro. >> >> The contact cement+vinyl+velcro solution definitely required more work up >> front. But the pay off on the playa was huge! It went up and down so much >> faster. And, it is already ready to go back up again. There is no per-use >> consumeables and nothing that has to be cleaned off before the next use. >> >> I have a bunch of video and other details on the build process that I hope >> to upload 'some day' but the short version is, DO IT! >> >> - jeremy >> >> -- >> You received this message because you are subscribed to the Google Groups >> "hexayurt" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> >> Visit this group at http://groups.google.com/group/hexayurt. >> For more options, visit https://groups.google.com/groups/opt_out. > > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hexayurt. For more options, visit https://groups.google.com/groups/opt_out.
