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Thompson Enamel - Opaque - 1780 Grape Purple - 1 oz.
Thompson Medium Temperature, Medium Expansion enamels are a glass product formulated to create a permanent bond with fine silver, copper, and gold. Bronze is not recommended for enameling.
These high quality, acid-resistant, 80-mesh enamels will provide rich, beautiful color for your metal clay work.
Thompson enamels are all lead-free!
See below for more information...
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The general firing range for Thompson enamels is 1400°–1500°F (760°–815°C). Enamels will fuse in 1 to 4 minutes depending on the color, type and thickness of the metal, and the temperature of the kiln. A typical firing is 1450°F (790°C) for around 2 minutes. Enamel powders will change in color after firing. Refer to the color image for a general indication of the fired result. Computer monitors do not accurately represent color, and enamel colors may vary slightly from batch to batch, so pre-testing your enamels before using them is recommended. Bronze is not recommended for enameling. The enamels are not formulated to adhere to it and will crack or chip off.
Color Specific Information:
Color: 1780 Grape Purple
Metals: Recommended for fine copper and gold. Not recommended for silver. See additional firing notes below.
Recommended Firing Range: Consistent with general firing range
Firing: Consistent with general firing times.
COE: 360 cubic expansion
Grade: 80 Mesh
Color Code: (G) Contains Gold
Additional Firing Notes:
This color fires well on copper, but reacts with silver turning it green. This example was fired on sheet silver. Color reactions may be magnifed on silver clay due to the porosity of the metal. The test piece was fired both directly on silver and over a single coat of 2040 Hard Fusing Clear. Two coats of clear, either 2020 or 2040, and multiple coats of the color may improve the results.
©2013 - The color notes presented here are the intellectual property of Pam East and reproduction in whole or part in any form requires written permission.
Transparent Enamel Assortment for Copper
Gold - Accent Gold for Silver (1 gram) - AGS2
Pam East CounterNamel - Semi-Clear
Thompson Enamel - Opaque - 1237 Butter Yellow - 1 oz.
Jeweler's Rouge Cloth 6" x 8"
Pam East CounterNamel - Red
Thompson Enamel - Opaque - 1425 Sapphire - 1 oz.
Vermiculite (1 pint)
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