An example of splitting, where a clay develops a split minutes after throwing. This often happens at stretch-points with sandy or groggy or minimally processed natural bodies that have a wide range of particle sizes (e.g. native bodies). When larger particles are poorly bonded by fine plastic clays, they can form networks into which water can penetrate. This issue is referred to as "splitting" because it is progressive, a crack starts, and it grows over a period of minutes. If you use bodies susceptible to this issue, various habits can be formed to minimize this problem. Perhaps the most important is not to leave water or high-water-content slip on any surfaces experiencing tensile stress (e.g. flared bowls, bellied vases).
| Troubles |
Splitting at the Plastic Stage
Pottery clays can split or tear at the plastic stage, sometimes ware can fall down right in front of your eyes. Understanding why is the key to avoiding the issue. |
| Glossary |
Throwing
The process of forming soft clay on a potter's wheel. |
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