I have to apologize for the delay, I didn´t realize the new posts for quite a while. The material shown here is the same I frequently found in cake items. It seems to consist mainly of coarse particles made from baked clay or similar. The word "grog" may be used to describe what that is. Maybe the pure bentonite approach isn´t the deal. However, I have no idea if a ceramics supply will source this kind of stuff, or if it´s just waste/fragments. What if one smashed a brick and used the resulting granules?
Excuse me dragging up an old thread.
Yes it is grog, it's cheap and you can get it in different meshes and made from different clays. The coarse stuff is crushed and graded firebrick. You can get white very hard stuff called Molochite, very expensive, but no better for your application. http://potclays.co.u...roducts_109.asp
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