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Frit VO 6134

Oxide Analysis Formula
SiO2 54.00% 3.15
K2O 4.00% 0.15
Na2O 4.00% 0.23
CaO 10.00% 0.62
Al2O3 13.00% 0.45
B2O3 15.00% 0.76
Oxide Weight 350.59
Formula Weight 350.59

Related Information

Mason stains in the G2926B base glaze at cone 6

19 glazed porcelain tiles showcasing Mason stain colors

This glaze, G2926B, is our main glossy base recipe. Stains are a much better choice for coloring it than raw metal oxides. Other than the great colors they produce here, there are a number of things worth noticing. Stains are potent colorants, the percentages needed are normally much less than metal oxides. Staining a transparent glaze produces a transparent color, it is more intense where the glaze layer is thicker, this is often desirable in highlighting contours and designs. If you add an opacifier, like zircopax, the color will be less intense, producing a pastel shade the more you add. The chrome-tin maroon 6006 does not develop well in this base (alternatives are G2916F or G1214M). The 6020 manganese alumina pink is also not developing here (it is a body stain). Caution is required with inclusion stains (like #6021), the bubbling here is not likely because it is over fired (it is rated to cone 8), adding 1-2% zircopax normally fixes this issue.

Links

Materials Frit
Typecodes Frit
URLs http://www.reimbold-und-strick.de/images/pdf/keramisch.pdf
Reimbold & Strick Frit chart with chemistry

Data

Co-efficient of Linear Expansion68 x 10-7 (20-400C)
Frit Softening Point700C
Glass Transition Temperature620C

By Tony Hansen


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