Ultra Clear Unleaded Dipping Glaze 3 Gallon drum. A lead-free, non-toxic transparent glaze available in 1, 3 and 5 gallon containers. Apply this light blue glaze by brushing or dipping. This product well matched with the Bellisimo range of underglazes as it is made by the same manufacturer but it is also compatible with all of our underglaze products. All bisque glaze firing is to 1020°C - Fire to cone 06