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Engobes
Various oxides, carbonates and commercial stains can be used to
color base engobe recipes. If you want to use commercial stains,
refer to your manufacturer or sales outlet for more information
on what percentages to use, or experiment yourself with your own
line blend. The following chart can be used as a guide for adding
percentages of oxides to engobe recipes for color results. These
colors refer to results obtained in oxidatiion firings. (For more
information on oxidation and reduction firings, please refer to
Oxidation and Reduction Firings).
| Colorant |
Color |
Amount (%) |
Iron
Oxide
Cobalt Oxide
Nickel Oxide
Manganese Dioxide |
Black |
3.0
2.0
2.0
2.0 |
| Cobalt Oxide |
Dark Blue |
1.5 |
| Copper Oxide |
Mid Green |
3.0 |
| Yellow Ochre |
Ochre |
4.5 |
| Iron Oxide |
Mid Tan |
3.0 |
| Rutile |
Creamy Tan |
6.0 |
| Iron Chromate |
Dark Gray |
3.0 |
| Manganese Dioxide |
Purple Brown |
6.0 |
| Fire
in Oxidation for the above color results. |
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