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Amaco Majolica Gloss (GDC) Low Fire (Cone 05) Glazes For Bisque -- LEAD FREE
These versatile gloss glazes are formulated for the Majolica technique but can be used in many other application methods.
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.
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 the Clear Glaze should be applied by dipping using
AMACO® DC-10 Dipping Glaze or by sponging, using 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.
Cone 05. The Majolica Gloss Glazes (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 series means no 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). 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
The GDC colors can be successfully used over other white or color
glazes as long as a small sample is pre-tested 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 Majolica Gloss Glazes can also be used for all over 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.