36514Re: [hobbicast] Re: Best grog for refractory?
- Sep 3, 2006What kind of furnace are you using?
----- Original Message -----
Sent: Sunday, September 03, 2006 2:08 AM
Subject: [hobbicast] Re: Best grog for refractory?
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.
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