Create reds and blues with depth and interest using copper inclusions in glass
Experiment with layering copper inclusions with glass to create a wide variety of effects.
We used the following glass and inclusions in the examples below:
Below are tiles made in our studio using copper foil or copper oxide and different glass styles. In each case the base glass is the layer directly on the kiln shelf, then the copper is added on top of the base glass, this is then topped with the cap glass before firing to a full fuse. Click on an image to enlarge it:
Sometimes when using copper wire, foil or other inclusions, the copper will turn a dark blue on firing rather than the expected red. This is caused by the metal oxidising during firing, which happens where the copper is exposed to air. To minimise the amount of air that the copper is exposed to during the firing you can: