Yeah, that's the one. On Sep 7, 2013, at 1:51 PM, Jeremy Shaw <jer...@n-heptane.com> wrote:
> This is what I used: > > http://www.dap.com/product_details.aspx?product_id=35 > > No idea on the vinyl -- whatever they had at the fabric store. > > - jeremy > > > On Sat, Sep 7, 2013 at 3:42 PM, ken winston caine > <ken.winston.ca...@gmail.com> wrote: > Another possibility, Steve: Is it possible that you and Jeremy used different > brands / formulations of contact cement? And / or possibly vastly different > formulations of vinyl? > > I know I often run into problems trying to match plastics with glues. > > > On Sat, Sep 7, 2013 at 2:20 PM, Jeremy Shaw <jer...@n-heptane.com> wrote: > Interesting. I did not have any hinge failure. However, closer inspection > shows that the CC seems to be a bit tacky in places that were not before > arrival. I am curious about this line: > > "with a tacky substance on both surfaces that made me wonder how it could > have healed at all" > > That makes it sound like you attached the two sides while they were still too > wet. You know that you are supposed to wait 15-30 minutes for each side to be > dry to the touch and then you join them? > > I did not put foil tape over the vinyl.. but only because I ran out of time > :) I probably will add that before the next use. > > For the record, I used 1.5 cans of CC for a 6' stretch hexayurt. I went > pretty heavy. And I used 6" wide strips of vinyl. > > I beveled my edges and there was quite a bit of tension on the vinyl while it > was set up. For each hinge I only had vinyl on one side (unlike the camp > danger bifi hinges). > > Working with the CC was definitely a pain -- so I would love to find a better > fixative. Whatever stuff they used on the back of the velcro seemed to hold > up stellar. The CC required a respirator, an outdoor work space away from > ignition sources, and made the vinyl warp all funny before it was applied. > Plus you had to wait a long time for all the curing -- which is a problem if > you were trying to do all the cementing on a small 4x8 deck like I was. > > - jeremy > > > > > On Thu, Sep 5, 2013 at 1:54 AM, Steve Upstill <upst...@gmail.com> 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 <jer...@n-heptane.com> 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 hexayurt+unsubscr...@googlegroups.com. >> To post to this group, send email to hexayurt@googlegroups.com. >> 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 hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > 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 hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > 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 hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > 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 hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > 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. 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