Glaze Crawling, On Purpose
|Black Slip Recipe|
Download your free copy of 15 Low-Fire Glaze Recipes from the Pros: Recipe Cards for Low Fire Pottery Glazes for more great reticulated glaze recipes!
With the following reticulation glazes applied heavily over the slip and fired at cones 04, 6, and 10, and with added colorants, a wide range of textural possibilities can be developed (see images below). The main requirement in the glaze is a heavy saturation of magnesium carbonate.
|Base Glaze Recipe
|Ferro Frit 3134||9.6|
|Ferro Frit 3195||5.7|
|Add: Zinc Oxide||5.7%|
Note: This glaze should not be used on surfaces that come into contact with food.
You will note in the photographs below that the overglaze fuses greatly at the higher temperature (Cone 9), giving smooth surfaces, whereas, at the lower temperatures (Cone 6), the glaze will be either beaded or dry and crispy like dried mud. Similar results can often be achieved by putting many matt glazes over glazes that are much more fluid. The more fluid glaze will generally start to melt earlier during the firing, encouraging fissures to develop in the matt glaze surface. So-called leopard skin glazes are usually done this way. The reticulation glaze may be colored with any colorants and stains.
Most of these glazes have been applied over a simple black slip in order to intensify the color of the covering glaze. Any black slip would be suitable to use. The one used here is from the formula above. Other colored background slips greatly extend the possibilities of palette. Firing these glazes at a wide variety of temperatures from cone 04 to cone 10 also greatly extends the possibilities.