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Ceradel Frit C 1249

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

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


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


Materials Frit
Materials Lead Bisilicate Frit
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.


Co-efficient of Linear Expansion85 (10-7/C 20/300C)
Frit Softening Point600-700C

By Tony Hansen

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