Porcelain May 2026
Generally contains 25% kaolin, 45% quartz, and 30% feldspar, firing at lower temperatures.
Often reinforced with alumina or ball clay for extreme durability in commercial use. Porcelain
Specifically added to Bone China recipes (up to 50%) to allow for thinner, lighter, and more translucent pieces. Common Formulations Generally contains 25% kaolin, 45% quartz, and 30%
The foundational ingredient. It provides structural integrity and maintains the white color at high temperatures. Generally contains 25% kaolin
Acts as a "flux," melting during firing to create a glassy matrix that bonds the other ingredients together, making the final piece non-porous (vitrified).
Proportions vary based on the intended use and firing temperature: