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Fusion Frit F-403

Alternate Names: Fusion Frit F403

Description: Barium matte opaque frit

Oxide Analysis Formula
BaO 35.00% 0.71
CaO 4.80% 0.27
Na2O 0.50% 0.03
ZrO2 3.00% 0.08
B2O3 1.50% 0.07
Al2O3 6.20% 0.19
SiO2 49.00% 2.53
Oxide Weight 310.62
Formula Weight 310.62

Notes

This analysis was confirmed with Fusion Sept 2013.

Related Information

Frits instead of raw zinc, lithium, barium, strontium

Tap picture for full size and resolution
zinc, lithium, barium, strontium oxide powders

These materials have many issues. They can create problems in glaze slurries (like precipitates, higher drying shrinkage), cause issues with laydown density and produce fired surface defects (like pinholes, blisters, orange peeling, crystallization). Lithium and barium carbonates have toxicity issues and the carbon burns off during firing (with lithium, for example, 60% of its weight is lost). Yet the oxides that these materials supply to the glaze melt - ZnO, Li2O, BaO and SrO can be sourced from frits (removing most of the problems and imparting better glaze melting). Fusion Frit F-493 has 11% LI2O, F-403 has 35% BaO, F-581 has 39% SrO and FZ-16 has 15% ZnO. Of course, these frits source other oxides (but such are common in most glazes). Using glaze calculation you can often duplicate the chemistry of glazes while sourcing these oxides from frits. This being said, using the frits is about achieving a quality and avoid defects over concerns about their extra cost. Often the benefits lower the overall cost of production.

Links

Materials Ferro Frit CC-257
Materials Frit
Frits are made by melting mixes of raw materials, quenching the melt in water, grinding the pebbles into a powder. Frits have chemistries raw materials cannot.
Materials Ferro Frit CC-257-2
Hazards Barium Carbonate
Typecodes Frit
A frit is the powdered form a man-made glass. Frits are premelted, then ground to a glass. They have tightly controlled chemistries, they are available for glazes of all types.

Data

Co-efficient of Linear Expansion 6.92
Frit Softening Point 1825F
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