Boro Batch
Knight
An extremely dark, near-opaque transparent black borosilicate rod that encases and implodes without losing saturation; work oxidizing to avoid graying, and handles high heat without boiling.
Outcomes
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Deep, near-opaque transparent black with a polished, shimmering surface; maintains saturation through encasement and implosionWork in an oxidizing flame to prevent graying. Extremely stable and handles high heat without boiling. Less stiff than other black rods.
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Gray or grayed-out black when worked in reducing conditionsReducing flame increases the risk of graying out the color. Oxidizing flame is preferred to avoid this outcome.
Working notes
- Use an oxidizing flame to reduce the risk of graying.
- Technically transparent but so dark it is nearly impossible to see through unless extremely blown out.