Western sodium bentonite. Montmorillonite. An ultra fine, clay-like mineral of volcanic origin added sparingly to dramatically improve clay body plasticity and to augment the suspension properties of clay in glazes while improving strength. Additions of up to 2% in either clay or glaze are typical; more raises the risk of cracking due to attendant high shrinkage.
For more information on bentonite, see the Digitalfire.com Reference Library of ceramic materials.Different Raw Materials ordered in full bag qty (20 kg to 100 lb) will be combined at checkout for a volume discount if applicable.