It's persistent - the flame treatment makes it a lot less smooth to touch. I am sure there is a scientific explanation :)
On Fri, Jul 27, 2018 at 3:09 PM, Steve Upstill <upst...@gmail.com> wrote: > Interesting! Does it still have to be hot when you apply the adhesive, or > does heating it once make it persistently friendly? > > On Fri, Jul 27, 2018 at 12:39 PM Vladimir Khodel <vkho...@gmail.com> > wrote: > >> To get glue to work on these kinds of plastics we do flame/heat treatment >> first - use a propane torch or a heat gun on high to soften the surface - >> after that epoxy works just fine ;) Let us know if it helps bondo or >> silicone adhesion as well! >> >> Vladimir >> >> On Fri, Jul 27, 2018, 09:28 Steve Upstill <upst...@gmail.com> wrote: >> >>> Thanks Jay! I'll probably keep this in the "family" until I've tried it >>> out *in situ. *Crossing fingers... >>> >>> On Fri, Jul 27, 2018 at 2:38 AM Jay Batson <batson...@gmail.com> wrote: >>> >>>> There is such amazing awesomeness in this. Thanks for posting., >>>> >>>> Do you dare post it on Figjam's ePlaya thread about swamp coolers >>>> <https://eplaya.burningman.org/viewtopic.php?t=33842>, or do you think >>>> that's just asking for unkind comments >>>> >>>> >>>> >>>> On Wednesday, July 25, 2018 at 7:23:58 PM UTC+2, Steve Upstill (Swifty) >>>> wrote: >>>>> >>>>> After years of struggling with the Home Depot swamp cooler, and >>>>> inspired by a friend of a friend, I started over, and made this: >>>>> [image: IMG_20180724_195151114.jpg][image: IMG_20180724_195216011.jpg] >>>>> >>>>> The vessel is a swing-lid trash can >>>>> <https://www.homedepot.com/p/Rubbermaid-12-5-Gal-Black-Swing-Top-Wastebasket-2007870/301227226?keyword=071691183082&semanticToken=200300+++%3E++++st%3A%7B071691183082%7D%3Ast++cn%3A%7B0%3A0%7D++71691183082+%7Bproductkey%7D+qu%3A%7B71691183082%7D>, >>>>> and the filter holders are cheap-ass soffit vents (two wide >>>>> <https://www.homedepot.com/p/Construction-Metals-14-in-x-8-in-Galvanized-Steel-Reversible-Foundation-Vent-TW148/202092772?keyword=736223133613&semanticToken=200300+++%3E++++st%3A%7B736223133613%7D%3Ast++cn%3A%7B0%3A0%7D++736223133613+%7Bproductkey%7D+qu%3A%7B736223133613%7D> >>>>> and one narrow >>>>> <https://www.homedepot.com/p/Construction-Metals-14-in-x-5-in-Galvanized-Soffit-Vent-SV145/202093194?keyword=736223106020&semanticToken=200300+++%3E++++st%3A%7B736223106020%7D%3Ast++cn%3A%7B0%3A0%7D++73622310602+%7Bproductkey%7D+qu%3A%7B73622310602%7D>) >>>>> from >>>>> the ventilation-and-flashing aisle, both from HD. The evaporative area is >>>>> more than 50% larger than my old bucket cooler, the water capacity two or >>>>> three times greater, and since the fan points horizontally (i.e, toward >>>>> the >>>>> yurt rather than the sky), it requires a fraction of the length of duct to >>>>> get to the building, so I expect higher flow AND less heat gain. I haven't >>>>> been out to the Playa with it, but I'm getting 5°F cooling at 68° >>>>> temperature and 68% humidity. >>>>> >>>>> The pump is a 3.6W 12V aquarium pump (2 for $15 at Amazon >>>>> <http://a.co/7D19LdH>), and that white thing at the bottom is a float >>>>> switch <http://a.co/iUFlZPy> to cut it off when the water gets too >>>>> low. >>>>> >>>>> It has a cigarette-lighter male plug for power in, so I can either run >>>>> it off a car battery or 12V solar panels. At the top, barely visible on >>>>> the >>>>> right, are simple 12V voltage regulators for the fan and the pump. I >>>>> bought >>>>> a pair of these solar panels <http://a.co/2V2y5bT> years ago, and >>>>> those voltage regulators are all the control you need (I think they were >>>>> $1.69 at my local electronics depot, ad I have two, one for the pump and >>>>> one for the fan, just b/c they're so wimpy). >>>>> >>>>> The lid was a bit of a mission to build, because you want a good seal, >>>>> yet the bin has rounded corners. >>>>> You'll have to follow this link to see what I mean. >>>>> <https://photos.app.goo.gl/Qavvxp7t9V32nVqX6> >>>>> Rather than try to duplicate the bowing of the box, I exploited it by >>>>> gently forcing it straight, to provide pressure against the outside. (I >>>>> used the dado blade on my table saw to cut the channels, but you don't >>>>> really need it to be held on both sides.) For the curves, I used Bondo: >>>>> plopped it down inside the lid, greased up the bin with butter, put it in >>>>> place and let it define its own shape. I suppose you could work from the >>>>> inside and pile more Bondo up on the lip, but that felt like overkill to >>>>> me. You could also do it entirely with Bondo, allowing the box to keep its >>>>> natural shape, only if your Bondo skills are better than mine. >>>>> >>>>> So will a hot, dry Playa give me enough temp. drop to sleep in? We >>>>> shall see. It does seem to be moving a lot of air. >>>>> >>>>> Cheers, >>>>> Steve Upstill >>>>> >>>>> -- >>>>> The only cure for hate speech is more speech. The only cure for hate >>>>> is love. >>>>> >>>> -- >>>> 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 https://groups.google.com/group/hexayurt. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >>> The only cure for hate speech is more speech. The only cure for hate is >>> love. >>> >>> -- >>> 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 https://groups.google.com/group/hexayurt. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- >> 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 https://groups.google.com/group/hexayurt. >> For more options, visit https://groups.google.com/d/optout. >> > -- > The only cure for hate speech is more speech. The only cure for hate is > love. > > -- > 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 https://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/d/optout. > -- 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 https://groups.google.com/group/hexayurt. For more options, visit https://groups.google.com/d/optout.
