[hackerspaces] liquid based non expanding insulation - name?

[Matt Goodman]

Does it have to be structural?  Polystyrene beads are _cheap_ and pack
nicely.  Ditto packing peanuts.
--Matthew Goodman

=====================
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On Thu, May 31, 2012 at 12:12 PM, Chris Weiss <cweiss at gmail.com> wrote:

> might be out of your budget, but I've found the great stuff "pro"
> window and door cans to expand with far less force than the single use
> window and door stuff.  There's also quite a lot more in the can, far
> more than just the difference in can size.  Also with the gun, you can
> use a small amount and then let the gun sit with the can on it for up
> to a month and won't cure, great for prototyping iterations like you
> seem to be doing.  Instead of 1 can per iteration, you might get 4-5
> iterations per can.
>
> On Thu, May 31, 2012 at 10:00 AM, Frantisek Apfelbeck
> <algoldor at yahoo.com> wrote:
> > Hi to all,
> > I need to insulate around 5-10 cm space all around an inner polyethylen
> (PE)
> > box (5 mm thick, cube, a=500 mm) and between it's outer MDF board based
> > shell (12 mm thick, cube, a=600 mm). The device is going to be an
> > experimental incubator, so temperature insulation is crucial. I have
> tried
> > to use polyurethane foam but it is expanding therefore it would distort
> the
> > soft PE internal layer. I used partly a polystyrene board for the back
> but
> > the boards do not fit exactly (thickness) and due to the fact that I used
> > screws and brackets in the project a lot it would be hard to put the
> boards
> > in anyway.
> >
> > The best thing in this moment would be to fill the spaces between the
> boxes
> > with some liquid un-expanding insulation which would get in all the
> spots,
> > become firm and I would be fine. The plan is that I would insert the
> inner
> > PE box, fasten it, flip the whole box on it's back side and fill the gap
> > between PE box and MDF box up with the insulation and "happy ever after".
> > Alternatively would you know if it would be feasible to brake down the
> > polystyren boards on a small pieces and mix them with some glue and
> apply it
> > in a similar manner? My budget for the insulation is $20-40 and I'm now
> in
> > Seoul South Korea.
> >
> > Thanks a lot for any help! It is a prototype so a great learning
> experience
> > but I have spend more than 20 hours on building two smaller size simple
> > boxes - bit slow I would say.
> >
> > Sincerely,
> >
> > Frantisek Algoldor Apfelbeck
> >
> > biotechnologist&kvasir and hacker
> >
> >
> > http://www.frantisekapfelbeck.org
> >
> >
> > "There is no way to peace, peace is the way." Ghandi
> >
> > _______________________________________________
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> > Discuss at lists.hackerspaces.org
> > http://lists.hackerspaces.org/mailman/listinfo/discuss
> >
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