5 lbs. Amy's Yana Glaze (dry material)
Description: This glaze was originally formulated by Mitzu Yanagihara in the 1950's for firing to cone 10 in an electric kiln. Tom Coleman shared this formula with me in 2005. At that time, this glaze crazed because of the changes in the raw materials. I made several changes, and I now fire it in cone 10 reduction with other slips and glazes.
Mixing: add water and mix. Screen through an 80 mesh screen twice. If you're accustomed to adding a little muratic (pool acid) to this glaze after it's mixed and screened - we highly recommend it. Just a cap full mixed in is plenty. Please wear protective gloves and a face shield/eye protection when adding the acid. You'll want this glaze to be at 42 - 45 on the hydrometer.
Application: I apply it to porcelain that's been bisque fired to cone 010. I apply it over Black Magic Slip, or without the slip. I'll also spray other washes and glazes into it for different effects.
Firing: Works the best in reduction fired to cone 10 or higher.
Images:
Mug: Porcelain with Black Magic Slip sprayed. Bisque fired to cone 010. Amy's Yana glaze sprayed and a mist of Shell Wash. Cone 10 reduction.
Vase (detail): Porcelain bisqued to cone 010. Amy's Yana sprayed and Shell Wash sprayed (wadded because this glaze runs).
Cup (detail): Porcelain bisque fired to cone 010. Amy's Yana dipped. Copper Wash sprayed misted into the surface. Keep detailed notes! The kiln needs to be fired in reduction to a really good cone 10 for this glaze to develop.