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Alternate Names: Frit VTR 29, Frit VTR29
Description: Lead bisilicate frit
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| PbO | 65.00% | 1.00 | |
| SiO2 | 35.00% | 2.00 | |
| Oxide Weight | 343.38 | ||
| Formula Weight | 343.38 | ||
Their web page does not give the chemistry, but does indicate the presence of Al2O3 and KNaO. We assume these are in small amounts since they call this a lead bisilicate.
| 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 |
Ferro Frit 3498
|
| Materials |
Lead Bisilicate Frit
A standard frit of 1 molar part of PbO and 2 of SiO2. It is considered stable and non-leachable. |
| Materials |
Ferro Frit 4064
|
| 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. |
| Frit Melting Range (C) | 980-1020C |
|---|
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