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Ferro Frit 3602

Alternate Names: F3602

Oxide Analysis Formula
PbO 65.27% 1.00
Al2O3 2.50% 0.08
SiO2 32.23% 1.83
Oxide Weight 341.96
Formula Weight 341.96

Related Information

Ferro lead alumina bisilicate Frit 3602 melt flow over many temperatures

A 9 gram ball of frit melts and flows downward more and more as temperature increases.

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.

High and low surface tension Frits

Fired at 1850F. Frit F-524 has run off the tester since 1850F. Frit 3602 is lead bisilicate.

1700F Frit Melt-Off: Who is the winner?

Melted balls of 15 frits on a ceramic tile

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.

Links

Materials Ferro Frit 3498
Materials Ferro Frit 4064
Materials Lead Bisilicate Frit
Materials Frit
Materials Ferro Frit 3403
Typecodes Frit
Typecodes Leaded Frit
Frits can contain 1% or 80% PbO so this category can be misleading, check the chemistry to find out.
Suppliers Ferro Corporation

Data

Frit Softening Point820C M
Density (Specific Gravity)4.50

By Tony Hansen


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