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Pemco Frit Pb-589
Alternate Names: Frit Pb589
Description: Zirconium opacified version of Pb-197
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 5.50% | 0.29 | |
| K2O | 2.30% | 0.07 | |
| Na2O | 3.80% | 0.18 | |
| PbO | 10.60% | 0.14 | |
| ZnO | 8.80% | 0.32 | |
| ZrO2 | 8.40% | 0.20 | |
| B2O3 | 6.20% | 0.26 | |
| Al2O3 | 6.90% | 0.20 | |
| SiO2 | 47.50% | 2.33 | |
| Oxide Weight | 294.69 | ||
| Formula Weight | 294.69 | ||
Notes
Add 10% clay for a cone 04-1 opaque glaze.
Related Information
Links
| Materials |
Frit
Frits are made by melting mixes of raw materials, quenching the melt in water, grinding the pebbles into a powder. Frits have chemistries raw materials cannot. |
| Typecodes |
Leaded Frit
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out. |
| Typecodes |
Frit
A frit is the powdered form a man-made glass. Frits are premelted, then ground to a glass. They have tightly controlled chemistries, they are available for glazes of all types. |
Data
| Co-efficient of Linear Expansion | 6.60 |
|---|---|
| Co-efficient of Linear Expansion | 6.6 x 10-6 (50-450C) |
| Frit Softening Point | 1520F |
| Frit Melting Range (C) | 1470-1620F |
| I.F.P. (celsius) | 630C |
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