Cobalt Blue produces an intense blue that becomes darker as it gets thicker. It's a good choice for any use that calls for a darker color. Like most of Coyote's Gloss glazes, it won't run, and can be relied on to produce a smooth, bold color. Equally suited to both decorative and practical ware, it combines well with other Coyote glazes, especially those in the Archie's and Shino series. Fires to cone 6.