Project Step 3: Fire
Stack the glass so that the blasted surfaces are placed against each other:
Align the edges:
Full fuse the glass on a shelf using only shelf primer. Do not use any shelf or fiber paper! Shelf paper and fiber paper create carbon when they burn. That fine ash can become trapped in the ground, sandblasted surface. When that happens, the project takes on an unpleasant gray hazing near the edges.
Here’s the firing schedule, using Fahrenheit:
Segment | Ramp | Target | Hold |
1 | 200° F / hr | 1225° F | 30 minutes |
2 | FULL | 1450° F | 20 minutes |
3 | FULL | 950° F | 45 minutes |
4 | 100° F / hr | 725° F | none |
Here it is using Celsius:
Segment | Ramp | Target | Hold |
1 | 111° C / hr | 663° C | 30 minutes |
2 | FULL | 768° C | 20 minutes |
3 | FULL | 510° C | 45 minutes |
4 | 56° C / hr | 385° C | none |
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