Kiln Wash is made from Kaolin and Alumina Hydrate 50-50. It is used for coating shelves so the glaze does not stick.
Also the best kiln wash for pottery. Order # of pounds.
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 towww.P65Warnings.ca.gov.