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This fine white New Zealand porcelain body has to be plasticized using an expensive white bentonite (VeeGum). In this test mix, the percentage of VeeGum was slightly low (3.25%). Although it is very plastic and throws well on the potters wheel, the tendency to split at the rim is evident on this dried mug. Only 0.5% more Veegum is needed to solve this issue. The percentage is critical, enough to eliminate this issue but not too much or the drying shrinkage will be excessive.
| Materials |
Veegum
A clay of incredibly small particle size. It has the highest plasticity of any known clay and acts as a suspending and gelling agent in slurries. |
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