Decals can be a simple and easy way to add an embellishment to a fused piece. They come in an array of colors and designs. The outlines are very delicate and intricate. The only drawback is finding a sketch that suits your needs or desired design.
The surface of the glass has to be soft for the gold to sink into the piece. Most gold and enamel images take at least 1200 degrees Fahrenheit to adhere properly. There are some that mature at a lower temperature. Read the directions that come with your particular designs.
These images are very temperature sensitive. This can change with the colors used. To receive the best results fire at a lower temperature and use a slightly longer soak time. Remember lower and longer, not higher and faster.
Theses are made out of the same gold as the gold that is used to paint on glass. If these impressions are under fired, rubbing a pencil eraser over the figure after firing will cause some of the gold to be removed. 1000 degrees Fahrenheit will set the gold, but will not fire it into the glass. These embellishments need to be fired higher for the best results. Recommended temperature is a minimum of 1225 degrees Fahrenheit.
Vent the kiln with a wedge during the burn off phase. This phase is the period that the backing on the image is burned off. Using a wedge, keep the door or lid open about 2 inches until the kiln reaches 1100 degrees Fahrenheit. Hold at this temperature for about 20 minutes. This applies to both the high-fire and low-fire images.
Ramp up 500 degrees Fahrenheit per hour to 1000 degrees Fahrenheit
AFAP to 1170 degrees Fahrenheit
Soak at this temperature for 30 minutes
Ramp down AFAP to 1000 degrees Fahrenheit
Soak for 30 minutes
Allow firebrick kiln to cool down naturally
If you use these do some testing on scrap glass before settling on a firing schedule. Remember to go slow and low and vent the kiln during the burn off phase.
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