I'm looking for a recipe for a buff stoneware clay body recipe. I'm going to be making a scupture from many large slabs, about 2-2.5 feet long, 5-6 inches wide, and between 3/4 of an inch and 1 inch think. I know I need a lot of grog to prevent it from warping. I'd like to prevent shrinkage as much as possible as well. I'm having trouble finding a very reliable clay body (perhaps one people making tiles would use)? I know many people have had success making large, thick slabs that don't warp, so if anyone has any suggestions for that process as well, that would be great. Thanks!!
Oh, I should clarify--oxidation firing no higher than cone 6. Also, it could be eartherware too I suppose, I really can't make up my mind.