Interested in creating reactive effects in your glass work? This clear glass reacts with silver foil when kiln fired, turning the silver a bright gold colour. Also reacts with silver wire.
The unfired sheet has a faint blue tint.
Upon firing, silver foil turns gold where it is in contact with the glass. The sample tile in the image above illustrates firing silver foil uncapped on top of 1015 (left), and fired between Clear and 1015 layers with 1015 as the cap (right). Faint blue colour may be evident in fired works.
Expect variations in effects. Variations can result from different sources and thicknesses of silver, glass production runs and heat work, which includes firing times, temperatures, and multiple firings.
For colour development, Bullseye recommend a 1 hour soak at 663C (1225F) in the pre-rapid heat section of the firing cycle.
Note: When firing silver foil in the kiln, be aware that the silver reaction can travel across the glass surface and onto the kiln shelf, potentially affecting silver-sensitive glasses in one or more subsequent firings. This can happen even when new shelf release (paper or primer) is applied to the kiln shelf. When fired between layers, silver is generally more contained and less likely to affect the firing surface.
Try layering with other colours. The seahorse piece was created by layering Alchemy glass with Light Sky Blue (1414).
All our glass is COE90, Bullseye Glass compatible and suitable for applications such as glass fusing, glass casting and glass slumping (unless otherwise stated in the description).