- An opacifier
similar to tin oxide.
- Better than
tin in reduction - not subject to chromium flashing.
- 50% ZrO2
with 50% tin oxide gives good results
- Mostly not
dissolved rather remaining in suspension.
- the preferred material as it disperses more easily giving better
forms of zirconium silicate in which the powder is coated with
a dispersal medium - Ultrox, Zircopax, Opax.
- Gives extreme
whites lacking the softer quality of tin oxide.