3mm Glass - Egyptian Blue Opal (0164-30)

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£3.43

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This Bullseye fusible glass sheet is double rolled and compatible with all other Bullseye 90coe glass.

The picture shows what you can expect from your Bullseye sheet glass colours before and after heatwork in the kiln. Please note colour shades may vary depending on your web browser.

The top row shows the unfired cold glass colour. For stained glass, refer to the top row.
The same glass after firing to a full fuse is shown directly below the cold glass. For kilnformed glass, refer to the bottom row.

Cold characteristics - Partly transparent.
Opalizes upon firing, may contain thin threads of colour variation.

Contains Copper. May react with glass containing Selenium or Sulfur.

At a full fuse, Egyptian Blue 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. It has been observed that the greatest contamination in subsequent firings is with sulfur-bearing French Vanilla (0137) and Spring Green Opal (0126). For a burnout firing, Bullseye recommend a rate of 300°F/hr to 1525, with a hold of 1:00.

 

 

 

 

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