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Thread: The wonder insulation material

  1. #1
    Join Date
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    Default The wonder insulation material

    Watched a clip the other day about a guy trying to duplicate StarLite, an insulating material developed a few decades ago that was said to be capable of protecting a hand from a blowtorch. This guy used a mixture of corn starch and baking soda, basically making a sheet of dough out of it. He then lays it in his hand and plays a torch on it. He claims it works because the corn starch sheds up a layer of carbon as the heat reacts with it and the baking soda, creating a carbon layer (possibly a carbon foam) that won't allow heat to pass. I know they use graphite for crucibles because it can stand the intense heat of molten steel and alloys. Could it be that carbon in a certain form be this 'super' insulator?
    I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

  2. #2
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    Default

    Cody's lab has a recent video on this super material. The impression I got was that it wasn't that super.

  3. #3
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    Default

    If it was invented a few decades ago, and really was that super, it would be in wide usage by now.

  4. #4
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    Default

    We use graphite crucibles at work -- not because they insulate but because they conduct very well. You can make an excellent hi-temp gasket paste by mixing corn syrup with graphite, the other chemicals burn off, just leaving the carbon behind. We normally run about 1100 C round the clock and the homebrew gasket paste holds up for years.

  5. #5
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    Default

    I saw something on TV a long time ago. I think it was about the material that was used for the insulation tiles on the space shuttle.The person doing the demonstration had a piece of white foam looking material that he held a torch to for several minutes and then he put it in his hand without getting burned. I guess it had something to do with the material not being able to retain heat or be heated up or rapid dissipation / thermal properties etc. Not sure which but it was very interesting.

    I just found this.....https://www.geek.com/news/2200f-spac...hands-1559855/

    JL..............
    Last edited by JoeLee; 02-04-2019 at 10:42 AM.

  6. #6
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    Default

    It would seem to be related to intumescent materials. https://en.wikipedia.org/wiki/Intumescent

  7. #7

  8. #8
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    Default

    I remember seeing this.
    https://youtu.be/Pp9Yax8UNoM
    Helder Ferreira
    Setúbal, Portugal

  9. #9
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    Aug 2009
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    Default

    That is totally amazing.

    JL.............

  10. #10
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    Jun 2009
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    san jose, ca. usa
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    Default

    that was cool

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