This could be very cool, good luck with your testing! While I have your attention :), do you know of any 3M glues that are good for a recent vintage Harbor Freight poly tarp?
The best I found so far was the green spray bottle of Hi-Strength 90, but I still needed grommets to keep it from peeling off... Does 90 exist in a liquid form? That would at least make it cheaper to deal with. And a bonus q: do you know of any 3M product that can bond 2 liter coke bottle material? I failed to find anything, and even bottlerocket people's urethane glue recipe would only hold for a limited time... Thank you for your expertise! Vladimir On Wed, Jun 5, 2013 at 4:01 PM, Charlie Staley <[email protected]> wrote: > First of all, thanks to everyone for the great ideas and information > > Disclosure: I work for 3M, but I do not work with the tape products. I > do have access to and use a great deal of my company's products and I > believed that 3M had to have something that better addresses the > requirements of a hexayurt. For Burning Man, anyway. Some of the 3M tapes > hold aircraft skin panels in place, so there has to be something that > works. > > I searched through 3M's public website, finding aerospace products that > were prohibitive. Oddly enough, on the hexayurt sites, someone referred to > 3M 8067 tape for more durable hinges. > > Following up on that, I looked that product up, and contacted technical > support. > > 8067 is a vapor and air barrier product, for window and door flashing. > Incredible strength. 1700 lbs psi tensile ! (with 700% elongation). > Fantastic adhesion to a variety of materials, including OSB. And it also > adheres well in the presence of moisture (not our greatest obstacle, but I > was impressed.). It survives 6 months outdoor exposure, according to the > specifications. This is a construction tape and film system. It can also > be applied at up to 120 degrees F. Helpful. ;-) > > Apparently, 8067 is the same stuff as 3015 and 8777, each for a different > specific construction application. 8067 and 3015 have "3M" printed on > them, but the 8777 does not. So you won't have to mask that one over at > Burning Man. > > Here is the link to the 8067 spec. > https://www.google.com/url?sa=**t&rct=j&q=&esrc=s&source=web&** > cd=3&cad=rja&ved=0CHIQFjAC&**url=http%3A%2F%2Fmultimedia.** > 3m.com%2Fmws%2Fmediawebserver%**3FmwsId%**3D66666UF6EVsSyXTtoXMcLXf2EVtQ** > EVs6EVs6EVs6E666666--%26fn%**3DNO%25203M%2520Datablad%** > 25208067.pdf&ei=Ol-**uUZCcHbOi4AOFnYEI&usg=**AFQjCNEb8hOgVIbMt_** > O4grVDqzF4xm5BYg&sig2=**WXH3ieCqKvGM2YZbfy6StA&bvm=bv.**47380653,d.dmg<https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&ved=0CHIQFjAC&url=http%3A%2F%2Fmultimedia.3m.com%2Fmws%2Fmediawebserver%3FmwsId%3D66666UF6EVsSyXTtoXMcLXf2EVtQEVs6EVs6EVs6E666666--%26fn%3DNO%25203M%2520Datablad%25208067.pdf&ei=Ol-uUZCcHbOi4AOFnYEI&usg=AFQjCNEb8hOgVIbMt_O4grVDqzF4xm5BYg&sig2=WXH3ieCqKvGM2YZbfy6StA&bvm=bv.47380653,d.dmg> > > Peel strength of 66N per 100mm to OSB. > It doesn't list aluminum, though it does list anodized aluminum. 66N > there too. (After UV. Higher before.) Virtually all of the materials were > similar (after UV) at 66N. > > Here is the tech sheet for the 3015. It has the tensile strength on it. > https://www.google.com/url?sa=**t&rct=j&q=&esrc=s&source=web&** > cd=2&cad=rja&ved=0CDcQFjAB&**url=https%3A%2F%2Fpromo.3m.** > com%2Fassets%2F3MCAN%**2F1805501114.pdf&ei=1l-**uUaviApP94AOfxIGwBA&usg=** > AFQjCNFYonUkF9N7YFJH0zm9NNga-**02dKw&sig2=SMLFw6-**jEBrhNtnYD6wbxQ&bvm=bv. > **47244034,d.dmg<https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&ved=0CDcQFjAB&url=https%3A%2F%2Fpromo.3m.com%2Fassets%2F3MCAN%2F1805501114.pdf&ei=1l-uUaviApP94AOfxIGwBA&usg=AFQjCNFYonUkF9N7YFJH0zm9NNga-02dKw&sig2=SMLFw6-jEBrhNtnYD6wbxQ&bvm=bv.47244034,d.dmg> > > You can search on any of these numbers with 3M tape in the search field as > well. You will find documentation as well as websites that sell the > products. > > Unfortunately, the stuff is not cheap. I can only find it on the web by > the case, and it is about $26 for a roll of 4 inch tape and the roll is > only 75 feet long. On the positive side, it is available with a split > liner along its length, allowing you to bond one side carefully, then bond > the opposite side making application easier. I have played with long > lengths of tape before, and I would end up throwing wads of it away when it > inadvertently stuck to itself. >:[ So I see the split liner as a huge > advantage over no liner, or worse yet, a solid liner. My other thought is > that with the incredible strength of the tape, that the 4 inch width will > probably work. With the 8777, you would not have to tape over it again > with foil tape or another tape simply to mask it. > > If you do want a more industrial bond, 12 inch film would be an option, > though that stuff hits $100 a roll. But it will stick to damn near > anything. Supposedly it is made in 6 inch width, but I couldn't find it. > Pricing per square inch worked out to be uniform, where 24 rolls of 2 inch > equaled 12 rolls of 4 inch, which equaled 4 rolls of 12 inch tape. About > $380. All 75 feet long. > > I was fortunate enough to score 5 rolls of 8067 on clearance in the > company store. Not enough for a full h12 or h13, but nearly. > > Over the long term, it might arguably be competitive. If you don't have > to replace the tape for a few years, you only have to re-tape your > separation joints, assuming a partially folded structure. In my garden, I > use the 3M clear duct tape. It has a moderate level of UV tolerance. That > might be an option to use over the inside hinges to seal the joints, as > well as seal to the ground tarp. Non structural bonds. Then simply slice > it when folding up. I have some that has been outside for 3 months now, > stuck to EMT conduit, and it's holding up OK. > > I would be glad to answer any questions that I can, and you're welcome to > check my shelter out at the Burn, in August. I'll be in the French Quarter > BRC. > > > > -- > 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?hl=en. > 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?hl=en. 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