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hommel frit #294

updated tue 9 feb 99

 

Tracy or Joy Gunderman on mon 8 feb 99

Jeff Lawrence asked Ferro about Hommel 294 replacement and was told Ferro
#3271 but that was not made for 20 years and they offered no numbers.

John Conrad's "Advanced Ceramic Manual" does not list that Hommel number
but lists Ferro 3271 as:

Na2O .486
K2O .514
B2O3 .768
SiO2 2.25
Mol Wt 247.9
Fusion degC 810C

Hope this helps
Tracy Gunderman