A question in another thread about kaowool reminded me I'm likely going to have to re-line my forge this fall. Repairs are definitely needed, so I'm thinking about just re-doing the whole thing.

I currently have 2" of kaowool (or another similar brand - can't recall) ceramic wool, coated with a refractory cement I bought from another smith here in Ontario. It isn't as good as satanite or ITC-100, but it seals the wool and seems to reflect at least some of the heat.

So my question for you guys is: what to you coat your ceramic wool with in your forges? It satanite or ITC-100 really worth the cost? Any other suggestion?

Thanks,
Kris