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36512Re: Best grog for refractory?

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  • alaska_woodwright_and_blacksmith
    Sep 2, 2006
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      Dave: My foundry, though large, is ready to melt AL in about 18
      minutes. I know mine is a bit overkill, but I routinely melt steel to
      caste specialty woodwright tools. My furnace can run to just around
      3900d and with the thickness of refractory and added kaowool, the
      outside is hot, but nor dangerously or injuriously so.

      JTL
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