Pemco Frit Pb-461
Alternate Names: Frit Pb461
Description: Very low expansion lead-borosilicate
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| PbO | 43.20% | 1.00 | |
| B2O3 | 21.90% | 1.63 | |
| SiO2 | 34.90% | 3.00 | |
| Oxide Weight | 516.67 | ||
| Formula Weight | 516.67 | ||
Notes
Added to glazes to prevent crazing, also used in low fire cone 012-06 glazes.
Related Information
Links
| Materials |
Pemco Frit P-941
|
| 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 |
General Frit GF-8
|
| Materials |
Hommel Frit 1006
|
| 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 | 5.20 |
|---|---|
| Co-efficient of Linear Expansion | 5.2 x 10-6 (50-450C) |
| Frit Softening Point | 1480F |
| Frit Melting Range (C) | 1460-1500F |
| I.F.P. (celsius) | 525C |
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