5 lbs. Revised Yana Crystal Glaze (for a brick kiln)
Note 1: This is one of our favorite glazes. We had this glaze years ago. With a few changes it's better then ever!
Description: This glaze likes to be fired to cone 10 reduction in a Brick Kiln. (it won't flux in a fiber kiln). This is a food safe glaze. And, it's stable at cone 10. In these images this glaze is shown over Coleman Porcelain that has been bisque fired to cone 08. And, over Black Magic Slip that has been bisque fired to cone 08 before applying the glaze. Then, they were fired to a hard cone 10 reduction in a 30 cu ft Geil Brick Kiln. Results will be slightly different over other cone 10 clay bodies. Remember to run tests before applying to important work.
Mixing: Add water and stir well with a paddle on a drill. It can be screened once thru a 60 mesh bowl screen. You DO NOT want to screen it thru an 80 mesh or you'll remove all the good stuff. Add a cap full of muratic acid and stir well with a metal spoon. This will help keep it's particles in better suspension. Wear eye protection and gloves when you do this. Let it sit overnight before using it. It will "fatten up" by the next morning. Check it with a hydrometer. You'll want to have it at 45-48 specific gravity on the hydrometer.
Application: This glaze can be dipped or sprayed. We use a green spray paint gun from Northern Tools with a 2.1 orifice size. You'll want a medium thickness. This glaze also takes over sprays of other glazes for accent color. In these photos we have our Copper Wash sprayed into this glaze. A little mist spray goes a long way. We use a silver spray paint gun from Harbor Freight that has a .8 orifice. The idea is that since it already has a nice crystal formation. Too much "gloss" or "flux" will drown out the crystals. So, just a mist of something to give it color and still keep the crystals. Also shown over Black Magic Slip.
Note 2: We recommend testing any unfamiliar slip or glaze on test tiles or test tubes before applying anything to important work.