|Monthly Tech-Tip |
Alternate Names: C1250 Fritte, C 1250 Fritte, Ceradel Frit 1250
The manufacturer calls this a lead bisilicate but only gives a range of values for the analysis (SiO2 - 15-40%, PbO 40-70%). Since the standard lead bisilicate is 65:35, that is what we have assigned here. We have another source that confirms that.
|Materials||Lead Bisilicate Frit|
|Materials||Ceradel Frit C 1249|
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.
|Co-efficient of Linear Expansion||67 (10-7/C 20/300C)|
|Frit Softening Point||900-1100C|