Pilchers White Slip (Cone 06-10)
Ball Clay: 25
EPK: 25
Flint: 25
Cornwall Stone: 12.5
Neph Sy: 12.5
TOTAL: 100%
Add:
Zircopax: 5
Frit 3124: 5
Coloring Pilchers Slip: 10% stain is the basic rule of thumb for coloring slip. I’ve found this to be about right in most cases of using mason stains. When using heavy metals like black iron or copper or cobalt, use much less. I use 4.5% copper for green and 3% black iron for brown. You only need .5-2% cobalt for blue.