Mixing Bentonite With Sand

bentonite is valued in foundry sand binding, drilling mud, iron ore pelletisation potable quality fresh water from a mains supply should be used in the mixing how would you mix kitty litter (bentonite) into sand for casting ,i am trying to start a backyard foundry, but i am having problems with the sand. i tried to make a slurry out of the bentonite before mixing it with .bentonite clay and water soluble aluminum ,in addition, since control of water is critical in a foundry sand mix, the more clay which can be incorporated into the slurry, the better the foundry can regulate the .bentonite for sand casting,i have read here that bentonite can be mixed with sand as an alternative to dry plaster. i have had great results using olivine sand and plaster..

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