40 mesh Hawthorne Bond. This is the main fireclay we use when we want a clay with texture but it was screened to eliminate large iron spots. This grind is finer but helps minimize shrinkage, and still adds tooth.
50lb bag order 10lb min
WARNING: This product can expose you to chemicals including Silica, crystalline (airborne particles of respirable size), which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.