1)washed kaolin is applied in Ceramics 2)whiteness over 80% 3)low humidity:about 18-22% 4)reasonable price kaolin. Kaolin can be applied in glaze, engobe, most ceramic body.Washed Kaolin: KL-81This form will tell you more about our Koalin KL-81. PropertieswhitnessHumidityAl2O3SiO2Fe2O3TiO2Parameter81~8318~22%37%48%<0.3%<0.5% White Ceramic Washed Kaolin KL-81