Pemco Frit Pb-674
Alternate Names: Frit Pb674
Description: Low expansion (low alkalia) low-lead glaze frit
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 6.90% | 0.63 | |
| K2O | 1.10% | 0.06 | |
| Na2O | 2.80% | 0.23 | |
| PbO | 3.50% | 0.08 | |
| B2O3 | 24.20% | 1.78 | |
| Al2O3 | 5.60% | 0.28 | |
| SiO2 | 55.90% | 4.76 | |
| Oxide Weight | 511.47 | ||
| Formula Weight | 511.47 | ||
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. |
| Materials |
Hommel Frit 576
|
| 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 | 5.2 x 10-6 (50-450C) |
|---|---|
| Frit Melting Range (C) | 1540-1680F |
| I.F.P. (celsius) | 645C |
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