General term for Montmorillonite clay.
Added to a body to improve plasticity (up to 5%) to increase plasticity and in glazes (up tu 2%) as a suspending agent.
A general term for a montmorillonite clay, often added to a body to improve plasticity.
Used in bodies (up to 5%) to increase plasticity, and in glazes (up to 2%) as a suspending agent, but must be added to the dry ingredients.
At stoneware temperatures it fuses to produce a typical brown colour (5%).
Increases glaze viscosity, firing range and resistance to crystallization.
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