Hi, I have been researching this subject and have not found much online about it. I have found some recipes that include goldart but have not found much in the way of particular advantages/disadvantages...and when I called rescoe tech support they did not seem to know anything about the subject. I would be interested to hear of anyone's experience both in deflocculating and casting with this clay as part of a casting body (I would need to use about 25%). is sodium silicate enough or does it require darvan 7 or some other material to deflocculate? thanks in advance!