I don't work for the adhesives folks, but have had to work with adhesives 
on my own products.

Tarps are typically made of polypropylene.  Soda bottles are often made 
from PET.  I work with PET, and that is something that is difficult to bond 
to.  There are adhesives, but the ones that I am familiar with are UV 
cured.  But in your own search, you'll have to specify the material.  

I'm not sure about 90 or 77.  Those are very aggressive products.  But when 
you're dealing with a low surface energy material like PET, all bets are 
off.  

The adhesive on the tape I mention is an acrylic adhesive.  Maybe an 
acrylic based liquid?  
As for liquid versions of 90, I'm not sure on that.

You can look up the products on the web, and there will be a technical 
service button you can hit to submit a question.  Try that, and try 
searching for adhesives for polypropylene and PET.
My own adhesive search for PET had some other specific requirements, so my 
results may have skipped over something that could have helped you.

Good luck.


On Wednesday, June 5, 2013 8:35:06 PM UTC-5, Vladimir Khodel wrote:
>
> 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 <beef...@gmail.com<javascript:>
> > 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.
>>
>>
>>
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>>  
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>
>

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