Hey, i'm planning on making a small foundry for aluminum, I plan on using a mixture of Fire mortarclay, portland cement, and silica sand. Can anyone suggest a ratio and amount of water i should use.
Hey, I'm new to the world of smelting, I'm going to turn an my useless 23'' Weber BBQ into a Foundry. My question is, what should my refractory solution be? I have a 50lbs bag of Mortar Fire Clay. I look online, and i can not find silica sand. perlite also seems really expensive. I'm looking for any suggestions, as I could us it graciously.