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Egyptian Blue Opalescent 000164

  • Sheet Glass

  • Rod

  • Frit

  • Stringer

Egyptian Blue Opalescent Sheet Glass

bullseye egyptian blue opalescent kiln glass 000164-0030-x-xxxx

Contains

Copper

May React With

Selenium, Sulfur

Cold Characteristics

Partly transparent.

Working Notes

Opalizes upon firing. May contain thin threads of color variation.

AAt tack fusing and slumping temperatures, the surface may develop a metallic gray film. This effect is inconsistent and usually disappears at full fuse temperatures. To localize the effect, which only occurs where Egyptian Blue is exposed, cap or layer with clear. Consider testing for each specific application. To achieve this effect more consistently, consider using Steel Blue Opalescent (000146). Learn more by reading: Special Effects: Steel Blue Opalescent.

At a full fuse, Egyptian 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). For a burnout firing, we recommend a rate of 300°F/hr to 1525, with a hold of 1:00.

Egyptian Blue Opalescent Rod

egyptian blue opalescent rod 000164-0576-F-xxxx

Cold Characteristics

Opaque.

Working Notes

Torch: A stable blue that is not prone to reduction in a neutral flame. Can turn rust color in reduction.

Kiln: Working properties and kilnformed characteristics are consistent with sheet glass. See sheet glass notes for this style.

Egyptian Blue Opalescent Frit

Egyptian Blue Opalescent frit 000164-0002-F-xxxx

Working Notes

At a full fuse, Egyptian Blue Opalescent has the potential to deposit trace amounts of copper on the surface of the kilnshelf. See notes on Sheet Glass tab.

Egyptian Blue Opalescent Stringer

000164-0272-x-xxxx

Working Notes

At a full fuse, Egyptian Blue Opalescent has the potential to deposit trace amounts of copper on the surface of the kilnshelf. See notes on Sheet Glass tab.