AMACO Liquid Non-Toxic Lead-Free Underglaze, 1 pt, Dark Blue LUG-22 Brilliant, ready-to-use opaque colors are approximately the same tone before and after firing Liquid underglazes are blendable and may be Brushed on greenware Concentrated colors cover large areas quickly, easily and smoothly Also great for detailed painting, sgraffito decoration, water color effects, free Brush painting and more Lead-free, AP non-toxic, conforms to ASTM D-4236