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Fusion Frit FZ-16

Alternate Names: Fusion Frit FZ16

Oxide Analysis Formula
CaO 4.20% 0.18
Na2O 9.40% 0.36
ZnO 15.50% 0.46
B2O3 30.20% 1.04
SiO2 40.70% 1.62
Oxide Weight 239.87
Formula Weight 239.87


This analysis was confirmed with Fusion Dec 2017.
Used for textured glazes. Very high in boron and zinc.

Related Information

Fusion Frit FZ-16-2 melt flow over many temperatures

This melt flow tester demonstrates the beautiful crystal-clear glass this zinc frit creates by 1700F. It fits this porcelain without crazing, even though very thick and high in sodium (the high zinc and boron are countering it to keep the thermal expansion down). It runs off the end of the runway around 1600F on this GLFL test, rivaling lead bisilicate. This is a more concentrated boron source than even Gerstley Borate. Everything about this material screams “ultra gloss”, what a material to build a fluid-melt reactive super-glaze on!

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. Produced the most transparent, crystal clear glass. But that is not what we see here.


Materials Frit
Materials Hommel Frit 446
Materials Hommel Frit 840
Materials Pemco Frit P-1733
Materials General Frit GF-110
Typecodes Frit
Suppliers Fusion Ceramics Inc


Co-efficient of Linear Expansion7.90
Frit Softening Point1450F

By Tony Hansen

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