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Showing results for tags 'Plasticity'.
@glazenerd I use a local South African white midrange stoneware clay which fires to cone 6. It is extremely short and I read that adding a 50/50 ball clay to bentonite mix will improve the plasticity. They recommend to add 50g to a kilogram of clay. Will this influence the cone my clay fires to? At first I thought it was short because it was freshly made, but I'm 6 months down the line and it's still short. It even cracks when I wedge and it's not dry. I think it might have neph sye in it because if I wedge normally it cracks like crazy, but when I stack and slam it becomes pudding like.