Ceradel Frit C 1249

Alternate Names: C1249 Fritte, C 1249 Fritte, Ceradel Frit 1249,C-1249

Description: Lead bisilicate frit, Bisilicate de plomb

Oxide	Analysis	Formula
PbO	70.00%	1.00
SiO2	19.00%	1.01
B2O3	11.00%	0.50
Oxide Weight		318.86
Formula Weight		318.86

Notes

Similar to a lead bisilicate, but with significant boron.

We have another source that says this is just a lead bisilicate. So the analysis is uncertain.

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.
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	Ceradel Frit C 1250
Materials	Ceradel Frit C 1251
Typecodes	Leaded Frit Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.

Data

Co-efficient of Linear Expansion	85 (10-7/C 20/300C)
Frit Softening Point	600-700C

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