Bullseye Steel Blue Opalescent Double Rolled 3 mm Glass

Please note: As stated on the Bullseye website:  Glass is hand rolled and cut sizes are approximate.  If you need the exact size of 10" x 10" or 5" x 10" for a project, we suggest purchasing the next size up of glass.  Please be aware that glass sizes may be slightly larger or smaller that the size you are ordering. 

Contains

Copper

May React With

Selenium, Sulfur, Reactive (000009, 001009, 001019)

Cold Characteristics

Uniform color.

Working Notes

At tack fusing temperatures, the surface frequently develops a metallic gray film. This usually disappears at full fusing temperatures. To maintain the metallic effect, fire as quickly and low as possible. Dark interface reaction likely with sulfur glasses (for example 001137, 001437, 000137).

At a full fuse, Steel Blue Opalescent has the potential to deposit trace amounts of copper on the surface of the kilnshelf. These deposits may react with sulfur-bearing glasses in subsequent firings. Processes that require greater heatwork, such as pattern or flow bar techniques, can also lead to copper deposits. Such deposits may not be visible and can react even when the shelf has been properly scraped and reprimed or, alternatively, when used ThinFire has been removed and new ThinFire is applied. This type of contamination is impermanent and may be burned out/fired out over the course of subsequent firings. A contaminated shelf can be fired with glasses—other than sulfur-bearing glasses—and no reaction will take place. In our studios, we've observed the greatest contamination in subsequent firings with sulfur-bearing French Vanilla Opalescent (000137) and Spring Green Opalescent (000126).