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These are standard mullite porcelain bodies designed to fire a little short of full density (or vitrification). They are made using #6 tile kaolin, Tennessee ball clay, nepheline syenite and silica (P580 has no #6 Tile and P600 is 50% #6 Tile). The firing process produces a range of areas having complete glaze coverage to others having no glaze and full flashing.
| Glossary |
Salt and Soda firing
Salt firing is a process where unglazed ware is fired to high temperatures and salt is introduced to produce a vapor that glazes the ware. |
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