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American Art Clay Co., Inc. - Gloss Decorating Colors (GDC) -- LEAD FREE Products

Glazes & Underglazes > Underglazes > Gloss Decorating Colors (GDC) -- LEAD FREE
Gloss Decorating Colors (GDC) -- LEAD FREE:

NON-TOXIC (36 colors) view colors
View Gloss Decorating Sets Colors

"Oil and Vinegar Ewers" by Posey Bacopoulos, New York, New York.


Four Techniques: One Glaze

This very unique series offers unlimited versatility. While developed specifically to produce the Majolica technique, these colors also perform well as a one step decoration for bisque, can be used for overall coverage as well as high fired on stoneware.
Gloss Decorating Colors (DC) For Bisque and Majolica Color Chips. (PDF format download)

Gloss Decorating Colors also available in economical class packs.
AP Gloss Decorating Colors Class Packs, plus all the K-6 AP non-toxic, lead-free class packs. (PDF format download)
Additional AP/CL Class Packs for grades 7-12 and above. (PDF format download)
Gloss Decorating Colors (GDC) -- LEAD FREE Product Details:

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GDC's are available in two ounce and pint jars, three assortments of two ounce jars and a Starter Set.

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. Majolica
Cone 05. The GDC's 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 F, 1044 C).

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 F, 1207 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.

AMACO GDC's have only been tested and approved as dinnerware safe when applied and fired under LG-10 Clear Glaze. They should not be used on surfaces which come in contact with food or drink. If left unglazed, AMACO clear glazes LG-9, LG-10, F-10 and HF-9 or any other dinnerware safe glaze are recommended to be used over AMACO GDC's to make them dinnerware safe.

Tableware producers must have all finished ware tested and approved as safe for dinnerware through a certified laboratory due to possible variations in firing temperature and possible contamination.



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