United glazes provide a wide color palette for your classroom, at an excellent value. Bright, bold colors will be sure to make finished pieces stand out. The non-flowing characteristics are great for almost any decorative technique including majolica, watercolor, marbling, stenciling, sponging, spattering, antiquing and many more. Apply three coats to fired Cone 04 bisque. They maintain a tough, durable and craze-resistant surface when properly fired to shelf Cone 05, but can be used for high fire applications up to Cone 6. Dinnerware safe and lead-free. Non-toxic with easy clean up, these glazes are ideal for use in the classroom, nursing home, studio and other institutions. AP Seal, non-toxic.