Hommel Frit 437
Description: Lead alumina bilsilicate (small amount of alkali)
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.10% | 0.01 | |
| K2O | 1.40% | 0.05 | |
| Na2O | 0.30% | 0.01 | |
| PbO | 67.80% | 0.93 | |
| Al2O3 | 2.30% | 0.07 | |
| SiO2 | 28.10% | 1.44 | |
| Oxide Weight | 307.46 | ||
| Formula Weight | 307.46 | ||
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. |
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Lead Bisilicate Frit
A standard frit of 1 molar part of PbO and 2 of SiO2. It is considered stable and non-leachable. |
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Ferro Frit 3403
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Pemco Frit Pb-723
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Fusion Frit FL-42
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| 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 | 11.1 x 10-6 |
|---|---|
| Frit Softening Point | 1370F |
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