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I've built a few coal forges. My insulating material tends to be a mixture of 2:3 plaster of paris to fine quartz sand. I bought the sand from a pool/aquarium s
by MrLeap 4y ago
I've built a few coal forges. My insulating material tends to be a mixture of 2:3 plaster of paris to fine quartz sand. I bought the sand from a pool/aquarium supply store.
It holds up well to the heat, but not so much the rain. I tend to remake it every 1-2 years. When it's time I crush up the old bits into a new mix so it doesn't take much more material.
- carapace 4y agoThat's awesome! Does that get hot enough to melt aluminum?
- HeyLaughingBoy 4y agoI'd be surprised if it doesn't. You can melt aluminum with a handful of charcoal briquets in a terracotta pot!
- carapace 4y agoOh really? I think the ball of aluminum foil in my junk pile is about to meet its fate. Cheers
- MrLeap 4y agoYeah certainly. If it's reasonably enclosed you can easily melt steel.
- carapace 4y agoWow! Cheers!