Mayco Fundamentals Underglazes are consistent, versatile, and intermixable. Apply to wet clay, greenware, or Cone 04 bisque with a brush or sponge. Certified AP non-toxic and food safe when a clear glaze is applied over them. Do not spray apply. Pint. - Fundamentals Underglaze Class PackFundamentals Underglaze, CLASS PACK - The Class Pack includes one pint each of Apple Green, Bright Blue, Bright Yellow, China White, Chocolate, Dragon Red, Fire Engine Red, Jet Black, Kings Blue, Leaf Green, Orange, and Regal Purple.