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: 2020 Clear for Silver and Copper
• Metals: Recommended for fine copper, silver and gold
• Recommended Firing Range: 1400°–1550°F (760°–845°C).
• Firing: Consistent with general firing times.
• COE: 305 cubic expansion
• Grade: 80 Mesh
• Type: Transparent
• Color Code: Standard Color

Additional firing notes:
This is a very good, general purpose, medium fusing clear that works well on all recommended metals and for most enameling projects. It’s the clearest of the clear enamels, and is the least likely to yellow when fired directly on silver. Initial firing on copper should be 1550°F (845°C) to clear the oxides off the metal. The copper should appear clean and bright under the enamel If it appears reddish or mottled it wasn't fired hot enough and/or long enough.

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©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.