Alternate Names: F3602
This demonstrates the amazing melt behaviour of lead-as-a-flux for ceramic glazes. Not only does it melt early, but it softens slowly over a 300F range of temperatures before it goes off the end of the runway on this GLFL test. Then, when fired 200F hotter than that, it remains a stable, clear and uncrazed glass. Beginning around 1750F, this becomes a transparent glaze, by itself.
Fired at 1850F. Frit F-524 has run off the tester since 1850F. Frit 3602 is lead bisilicate.
These were 10g balls melted using our GBMF test. Frit 3602 is lead bisilicate. But it got "smoked" by the Fusion FZ-16 high-zinc, high-boron zero-alumina! Maybe you always thought lead was the best melter. That it produced the most transparent, crystal clear glass. But that is not what we see here. See something else? Each frit has a melt-fingerprint. Two are similar, it is immediately evident which.
|Materials||Ferro Frit 3498|
|Materials||Ferro Frit 4064|
|Materials||Lead Bisilicate Frit|
|Materials||Ferro Frit 3403|
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.
|Frit Softening Point||820C M|
|Density (Specific Gravity)||4.50|