| Mix: | |
| White Lead | 116 |
| Whiting | 25 |
| Zinc Oxide | 12 |
| Feldspar | 83 |
| Kaolin | 13 |
| Flint | 36 |
3. Bright fritted glaze.
| Cone .02 | |||||
| PbO | .25 | } | |||
| ZnO | .15 | } | Al2O3 .15 | } | |
| CaO | .30 | } | B2O3 .30 | } | SiO2 2.35 |
| Na2O | .20 | } | |||
| K2O | .10 | } |
| Mix: | |||
| Fritt | Glaze | ||
| Borax | 114 | Fritt | 117 |
| Whiting | 60 | White Lead | 64 |
| Soda Ash | 10 | Zinc Oxide | 12 |
| Spar | 56 | Spar | 28 |
| Flint | 78 | Kaolin | 13 |
| Flint | 60 | ||
| Grind as before. |
4. Matt glaze.
| Cone .02 | ||||
| PbO | .50 | } | ||
| CaO | .30 | } | Al2O3 .34 | SiO2 1.48 |
| K2O | .20 | } |
| Mix: | |
| White Lead | 129 |
| Whiting | 30 |
| Spar | 111 |
| Calcined Kaolin | 22 |
| Kaolin | 11 |
5. Matt glaze.
| Cone 7 | ||||
| CaO | .75 | } | Al2O3 .55 | SiO2 2.10 |
| K2O | .25 | } |