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Pemco Frit Pb-1B20
Alternate Names: Frit Pb1B20
Description: Lead-alumina-silicate low expansion frit
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| PbO | 50.00% | 1.00 | |
| Al2O3 | 20.00% | 0.88 | |
| SiO2 | 30.00% | 2.23 | |
| Oxide Weight | 446.40 | ||
| Formula Weight | 446.40 | ||
Notes
Relatively high melting point and low coefficient of expansion. Tends to devitrify.
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 | 4.70 |
|---|---|
| Co-efficient of Linear Expansion | 4.7 x 10-6 (50-450C) |
| Frit Softening Point | 1850F |
| Frit Melting Range (C) | 1800-2050F |
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