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Alternate Names: Fusion Frit F19
Description: Boro Calcium Dinnerware Frit
Oxide | Analysis | Formula | |
---|---|---|---|
CaO | 14.20% | 0.69 | |
Na2O | 7.00% | 0.31 | |
B2O3 | 14.60% | 0.57 | |
Al2O3 | 9.70% | 0.26 | |
SiO2 | 54.50% | 2.48 | |
Oxide Weight | 273.21 | ||
Formula Weight | 273.21 |
This frit has a chemistry very similar to Ferro 3124 yet Fusion recommends their Frit 621/19 as closer substitute.
G2934B is a popular recipe and there has been alarm recently because of the difficulty in getting the Ferro frit and variation in its quality recently. This motivated us to get a supply of the Fusion equivalent, F-19. When doing substitutions like this we do testing in glazes and with melt fluidity tests like this .
On paper, Fusion F-19 has a very similar chemistry to 3124. However, as can be seen here, it is flowing a little more and appears to have a lower surface tension. The glass is also more transparent and the entrained bubbles are bigger. The differences could be partly to Fusion using a different set of raw materials to source the chemistry or differences in their smelting process.
Fusion Frit F-19 is claimed to be a substitute for Ferro Frit 3124. The glaze was applied on Plainsman L210 and fired at cone 04 (not as thick as would be customary on Majolica ware). Left is with Ferro Frit 3124, right is with the Fusion product.
Materials |
Ferro Frit 3124
A commonly available borosilicate frit is high in calcium. |
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Materials |
Fusion Frit F621/19
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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 |
General Frit GF-113
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Materials |
Hommel Frit 90
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Materials |
Hommel Frit 378A
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Materials |
Pemco Frit P-311
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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. |
Co-efficient of Linear Expansion | 7.90 |
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Frit Softening Point | 1550F |
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