Ive been doing a lot of reading on here but can't seem to find info on building a foundry. Its my first attempt at this and my castable refactory didn't settle well to my form and there's exposed kaowool in several places. Hoping I dont need to buy more refactory Cement just to cover these areas. Any advice is helpful, and appreciated. I know I'm doing lots wrong but thats how I learn. For reference its a 6 gallon trash can with 2" of kaowool and the castable cement is roughly 1/4" or so, also I didnt have enough castable for the top of bucket so I slabbed some refactory Cement from Ace Hardware around top ring of can. Still need to figure out the lid.