000113 White Opalescent

Cold Characteristics

Partly transparent. Slight dappling of color.

Working Notes

Opalizes upon firing. Slight dappling apparent in transmitted light.

Working with White Opal Iridescent Rainbow

• Iridescent coating face-up, uncapped: Typically fires less metallic, dry, and dull compared to the unfired/cold sheet. We have observed this effect in tack fuse and full fuse firings. Not recommended.
• Iridescent coating face down, against shelf primer: The iridescent coating remains metallic with a matte finish.

• Iridescent coating face-up, capped with clear sheet glass: Subtle iridescence is visible through the clear cap.
• Iridescent coating face-up, fired with a layer of clear powder on top: Iridescence diminishes compared to the unfired sheet. Glossy finish.

Bullseye Compatible.

Working Notes

See sheet glass notes about this style.

Working Notes

As of Spring 2019, White Opalescent stringer (000113) has been reclassified under Dense White Opalescent (000313). For reactive potential and working notes, please see Dense White Opalescent.

Working Notes

See sheet glass notes about this style.

Working Notes

See sheet glass notes about this style.

Working Notes

This style is intended for kilncasting, though it can become incompatible when combined with other casting styles and held in the 1250-1350°F range for extended periods. As the extended heatwork of kilncasting very often exceeds the parameters of the test for compatibility, we recommend reducing hold times in the 1250-1350°F range to minimize heatwork when using this style. Testing is recommended when heatwork exceeds these parameters. 

See TechNotes 3 and What to Expect from Bullseye Glass for more info.

Annealing Considerations

We have found that 0113-0065 has a unique characteristic that must be considered when fired in combination with light colored transparent casting styles. The white glass naturally reflects the infrared radiation from the elements, while the transparent glasses absorb it, thus creating a difference in temperature within a project even if the kiln is cooling uniformly. This is problematic in the annealing range when the work must achieve and maintain a uniform temperature to anneal successfully. We recommend covering cast work at 1000°F on the way down with a preheated vermiculite or fiber board to shield the project from the infrared radiation emitted by the kiln’s elements. This enables the piece to anneal through a combination of conduction and convection, rather than infrared radiation, which allows the disparate glass styles to maintain a uniform temperature, as long as the piece is set up in a way that ensures even heating and cooling.