This site is brought to you by Helios Kiln Glass Studio in Austin, TX.
Working with Metal Inclusions
I recently ordered some glass online and received a free gift of some gold metal butterfly inclusions. I have not worked with inclusions before. I decided to experiment. This is what I did.
- Cleaned the thin metal butterfly with alcohol.
- Cleaned a piece of white opal glass to use as the base.
- Placed the butterfly in the center of the base glass.
- Capped with a piece of cleaned clear glass.
Then I full fused using this schedule:
- 500 degrees/hr to 300 - hold for 5 minutes
- 800 degrees/hr to 1465 - hold for 10 minutes
- AFAP to 950 - hold for 30 minutes
- 175 degrees/hr to 800 - hold for 10 minutes
- Cool to room temperature
Result - The butterfly is dull and discolored in some spots - shiny in a few spots. There is a large bubble at the head of the butterfly, a smaller bubble at the tail, and a small bubble at the side of each wing.
So what did I do wrong? How can I avoid the bubbles and get the butterfly to stay shiny (or at least uniform in color)? Did I fire too hot? Too fast?
All feedback/suggestions are welcome!