Ball Clay (Om4)

Available from Seattle Pottery Supply when we last checked. Sold from the shop’s own store; the price there is the one that counts.

OM‑4 Ball Clay is a highly plastic, fine-textured clay that enhances both strength and workability in ceramic bodies. Its smooth, consistent particles improve green strength and reduce cracking during drying, making it ideal for stoneware, porcelain, and functional pottery. With moderate natural organics and a light-firing color, OM‑4 blends easily with other clays and fluxes to create durable, high-quality wares. While it can help suspend heavier materials in glazes in small amounts, its primar