|Monthly Tech-Tip |
This is a GLFL test comparing the melt flow of the three materials at 1800F. Frit 3124 is barely out of the starting gate and the other two have crossed the finish line! With frits chemistry is a big deal, they are all about supplying oxides to the melt. Frit 3134 is low-alumina/high-boron, 3124 is medium-alumina/low-boron and 3195 is medium-alumina/high-boron. Boron is the melter. Alumina thickens the melt and hardens the glass. Just from this it appears that Frit 3195 is a better starting point for calculations to replace frit 3134.
Can't get frit 3134 for glaze recipes? Can you replace it with frit 3124? No, 3124 has five times the amount of Al2O3 (the second most important oxide in glazes) and half the amount of B2O3 (the main melter). This ten-minute video presents a glaze chemistry approach that is easier to do than you probably think. On three different recipe types, you will learn to source the needed oxides from two other Ferro frits, 3110 (or Fusion F-75) and 3195 (Fusion F-2) and end up with at least 15% kaolin in each (to suspend the slurry). Each requires a unique approach. Two of the calculations produce improved slurry properties and one yields a recipe of significantly lower cost. If you have a recipe that needs this, get an insight-live.com account, enter it there and I can help you do the calculation.
Substitute Ferro Frit 3134 For Another Frit
I use my Insight-live account to do the glaze chemistry to replace Ferro frit 3134 with combinations of three other common Ferro frits. We will see the challenges of doing this in three different types of recipes.
Material substitutions in ceramic glaze and body recipes must consider their chemistry, mineralogy and physical properties