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I Forge Iron

Refraction substance?


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I would assume you are making a gas forge, so here's my two bits.

I use Kaowool to line my forge. For a coating to protect  the lining I use ITC-100 HT. It works pretty good though I had a interesting  time to try to apply it. Some people say to use a spray bottle, that didn't work so well I ended up using a foam brush and dabbing it on. You can find it on Anvil fire or High Temp Tools.

 

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17 minutes ago, Clayton M. said:

I would assume you are making a gas forge, so here's my two bits.

I use Kaowool to line my forge. For a coating to protect  the lining I use ITC-100 HT. It works pretty good though I had a interesting  time to try to apply it. Some people say to use a spray bottle, that didn't work so well I ended up using a foam brush and dabbing it on. You can find it on Anvil fire or High Temp Tools.

 

Clayton - I'm also in the midst of building a propane forge, and have the Kaowool and ITC-100 on hand.  But I was wondering if a thin shell of refractory (1/4" or so) over the Kaowool before applying the ITC-100 would be a good idea to protect the fragile wool.  I'm thinking the ITC-100 is going to make a pretty thin layer, and may not provide much protection against ham-handed metal handling.  Your thoughts on that?  Thanks - Dave

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I'd imagine that would work. I've never  tried putting refractory cement  over the wool. The wool is very good insulator and if you're careful then damaging  the wool shouldn't be a problem.  The cement even in small layers like that may act like a heat sink until the layer reaches temp.

What I do is just put a cut firebrick, a soft one, in the bottom of the forge to lay the work piece on. Then I try to be careful and not bang the lining up at all. If you  makes knives or something like that you shouldn't have too big of a problem with injuring the lining.

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Read the attachment Build a Gas Forge on the Forge Supplies page at WayneCoeArtistBlacksmith.  ITC-100 sells for about $75.00 per pint.  Plistix or Metrikote sell for around $15.00 to $20.00 per pint.  They all work and do about the same job.

The attachment explains why casting about 1/2" thick over the blanket, then painting a coat of one of the above products yields a better forge.

Let me know if I can help you.

Wayne

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