Moist Clays, Clay Accesories, Kilns and Kiln Furniture, Pottery Wheels

1. Bisque Underglazes, One Step Method The GDC Series is very versatile. Colors can be used directly over Cone 04 bisque to create a design, then clear glazed and fired. This is a one step method, where there is no need to fire the GDC before applying the Clear Glaze. However Clear Glaze should be applied by dipping using AMACO DC-10 Dipping Glaze or by sponging, using either LG-9 or LG-10. When using GDC colors on bisque, they can be applied in one coat to create translucent designs or apply two or three coats for a more solid color.

2. Majolicaab Cone 05. The Gloss Decorating Colors (GDC) were developed specifically to produce the Majolica technique. Each of these colors can be applied directly over unfired LEAD FREE AMACO LG-11 Opaque White glaze. The special formulation of this exciting 36 color series means that no clear covering glaze is necessary. Colors will fire glossy and assume the smooth surface of the white base glaze. Recommended firing temperature is Cone 05 (1911 degrees F, 1044 degrees C). The colors in the GDC series have only been tested and approved as safe for dinnerware when applied alone and on top of AMACO LG-11. They must be retested as safe for dinnerware if they are used on top of other glazes.

These colors will also produce excellent results when used over most of the AMACO LG Series Glazes as well as the F, LM, and the DG Series glazes.

The GDC colors can be successfully used over other white or color glazes as long as a small sample is pretested first to establish the appropriate temperature to achieve the best results. Variations on how the GDC series can be used is limited only to the potter’s imagination.

3. All-Over Coverage The Gloss Decorating Colors can also be used for over all coverage or to design over the bisque with no additional glaze over or under it. In such cases, application should be of at least two coats or more to achieve good results.

4. High Fire Majolica Technique When GDC colors are used for stoneware, use HF-11 White glaze over bisque and follow the same decorating technique as earthenware. Glaze fire to Cone 5 (2205 degrees F, 1207 degrees C). Colors will not change at Cone 5 except the following: GDC-55 will change to Dark Blue, GDC-45 will change to Dark Green, and GDC-64 will change to Light Yellow/Green.