These two close-ups of a fired cone 6 porcelain showing a big difference in surface smoothness. The deaired material on the right has a much smoother fired surface even though the non-deaired material on the left has been wedged much more. The transparent glaze does not hide the roughness.
Glossary |
De-Airing Pugmill
The practice of removing air from clay as it is pugged. Deaired clay has better forming properties and produces a smoother fired surface. |
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