Pemco Frit P-25
Alternate Names: Pemco 25, Pemco Frit 25
Description: Leadless alkaline fluorine frit, use for cone 06-02
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.50% | 0.03 | |
| K2O | 5.40% | 0.18 | |
| Na2O | 14.70% | 0.76 | |
| ZnO | 0.70% | 0.03 | |
| B2O3 | 16.90% | 0.78 | |
| Al2O3 | 12.10% | 0.38 | |
| SiO2 | 49.70% | 2.65 | |
| F | 1.80% | 0.30 | |
| Oxide Weight | 326.35 | ||
| Formula Weight | 326.35 | ||
Notes
Often used with 10% clay addition for low temperature crackle glazes. Frequently used as a component in partially fritted wall tile glazes.
Related Information
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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 |
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 | 10.0 x 10-6 (50-450C) |
|---|---|
| Frit Melting Range (C) | 1320-1420F |
| I.F.P. (celsius) | 575C |
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