The_Kobalt

I guess I should start our by clarifying what I'm trying to do, huh? XD Well, for starters, some friends and I made a steel bucket foundry. And, as I predicted, three used of the quikrete lined bucket later, it cracked, and the fire extinguisher bottom we were using as a crucible melted right through. So, i went to the dump to salvage. I found a gas water heater, and cut the top off. From there, I cut about 14 inches out of the body of the tank, creating a shorter, lighter version of the tank. Now that it no longer weighed like a sack of rocks it was manageable. I bought kaowool and a nice crucible for it, and was promised 100 lbs of industrial grade refractory cement. But... that promise fell through. I'm now trying to ask around for cheap alternatives that won't be biting my xxxx after twenty uses. If this metalworking gig becomes a thing, a bigger, better foundry is in order. I need a hot face, as I can insulate with kaowool. Something important to note is that I would like the burn used motor oil, because it's free, and I have an insane amount of it. I have the plumbing and blower figured out, but now, I need a working foundry. I'm reading the xxxx out of these forums, and there's more great advice here than anywhere else! If you know about clays and what not to line the foundry with, could you point me to a good thread on that? I'm reading up on advice to newbies! A good place to start, right?

Hey, I'm new here, and wondering what else I would need to make a decent refractory cement from fine garnet tailings and silica sand. Thanks!