Letter Re: The Home Foundry, Metal Casting
Jim, I couldn’t agree with Dan more, sand casting takes some experimentation and tinkering. Once you get your sand and flasks working, it’s a snap, but you will mess up a lot of casts before you get everything tuned. His tip for using cat litter as bentonite clay is pure genius, but be prepared to test several brands before you hit on one that works for you. Clay cat litter can be made from almost any clay. Sodium Bentonite (or western bentonite) is often chosen for it’s absorbency, but any given brand of kitty litter may vary between lots. “Bentonite …