Carbon Foam Refractory?

Discussion in 'Furnaces and their construction' started by JCSalomon, Sep 8, 2020.

  1. JCSalomon

    JCSalomon Copper

    Has anyone experimented with this sort of DIY carbon foam insulator for furnaces?

    The video shows it working for forges and a small-scale aluminum melt.
  2. Tobho Mott

    Tobho Mott Administrator Staff Member Banner Member

    Not me, but here's some more!


  3. rocco

    rocco Silver

    I'm doubtful it would work well, at the very least, you'd have to make sure you run your burner on the rich side, a lean flame would burn through the carbon foam in no time.
  4. metallab

    metallab Silver

    Indeed, it would burn up, unless you coat the inside with Satanite or Fermit.
    But I don't see the advantage of C foam over kaowool.
  5. Fulmen

    Fulmen Silver

    It's pretty obvious that it won't last if exposed to open flame, but it might work OK if coated or otherwise protected from direct flame and air. I know some people at experimented with it a while ago...
  6. Tobho Mott

    Tobho Mott Administrator Staff Member Banner Member

    The Mizzou hotface to wonderbread's Kaowool insulation should obviously be a thin layer of dense, flux resistant, 3200F Christmas Fruitcake. The stuff is nigh indestructible!


  7. JCSalomon

    JCSalomon Copper


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