Jade Iguana Co. currently has Black, Green, Red, Blue and Yellow glazes available. 
Underglazes are a staple for many ceramic artists and can be applied to wet clay, greenware, or cone 06 bisque.
Mayco Underglazes are highly versatile – use for complete coverage or in design, apply to clay or bisque.
Serves equally well to a student starting off or a seasoned artist working on a gallery.
Fires from cone 04 to cone 6 but results vary at cone 6. Instructions printed on labels.
AP Certified Non-Toxic. Made in USA.