Alumina hydrate is a refractory material added to ceramic glazes to increase viscosity and prevent excessive running during firing. It stabilizes the melt, improves glaze durability, and helps produce matte or satin surfaces. Many potters use alumina hydrate to fine-tune glaze recipes, especially for midrange and high-fire stoneware.
Alumina hydrate
Raw Materials, Slips & Chemicals FAQ
Can I mix my own glazes with your materials?
Yes, people follow recipes all the time and purchase raw materials from our store to mix your own glaze.
Do you sell raw materials in small quantities?
Most raw materials come in 1lb, 5lb, 10lb and 50/55lbs.
How can I find SDS or safety sheets?
You can review Safety Data Sheets here.
Do you offer bulk discounts on raw materials?
Raw materials is all by quantity – the better buy is a bigger quantity, and the best buy is a full bag.
How do I calculate how much raw material I need?
We sell by the pound so please convert any recipe to pound.
Do you sell slip for casting?
Yes we sell slip in low fire and mid-range.
Why does the color of raw materials vary?
It could be a multitude of reasons – manufacturing and mixing process, natural variations in composition, different pigments, changes in materials physical structure.