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Boric acid used to provide heat protection?

  1. Aug 27, 2004 #1

    Has anyone heard of a layer of boric acid being used as a heat shield? I know it is often used in solution and other composites to act as a fire retardant, but what I'm looking for is any reference to boric acid, by itself, being used as an insulator. Maybe like a layer of boric acid protecting the components of a flight data recorder?

    Heard of anything like this?
  2. jcsd
  3. Jul 18, 2005 #2
    See US patent 6264854.

    When was his query posted please ?
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