Where Zirconium Silicate Performs Best
From ultra-white sanitaryware glazes to premium ceramic tiles and tableware, Antai's ZrSiO₄ powders are formulated to deliver consistent, measurable results in every application.
Serving the World's Major Ceramic Industries
Our ZrSiO₄ powder is used in the most demanding ceramic applications worldwide.
Ceramic Tiles
Opacifier in floor and wall tile glazes for bright, consistent white base coats with exceptional coverage
Sanitary Ware
High-whiteness glazes for toilets, basins, bathtubs and urinals requiring premium finish
Tableware
Premium opacification for ceramic plates, bowls and dining sets with brilliant white appearance
Ceramic Floor & Wall Tiles
Zirconium silicate is the most widely used opacifier in the global ceramic tile industry. Its high refractive index (~2.0), chemical inertness, and stability up to 1250°C make it indispensable for producing opaque, white, and bright tile bodies.
Antai's Grade B and Grade B6 are the workhorse grades for tile manufacturers across Asia, supplying factories from Pakistan to Vietnam with reliable batch-to-batch consistency.
- High opacity and brightness at dosage of 8–12%
- Stable in fast-fire roller kiln processes at 1150–1250°C
- D50 ≤ 1 μm for even distribution in glaze slurry
- Consistent ZrO₂ content batch-to-batch
Sanitaryware & Vitreous China
Sanitaryware production demands the highest purity ZrSiO₄. The ultra-white finish of premium toilets, basins, and bathtubs depends on Grade T and Grade A opacifiers with ZrO₂ ≥ 63.5% and minimum Fe₂O₃ content.
Antai is the primary supplier to TOTO, JOMOO, and American Standard — three of the world's most demanding sanitaryware brands.
- Whiteness 91–95 achieving bright "brilliant white" glaze
- Fe₂O₃ ≤ 0.12% minimises discolouration in glaze firing
- Superior gloss and surface smoothness
- Consistent opacity in sanitary body and overglaze
Tableware & Dining Ceramics
Premium ceramic tableware requires exceptional whiteness and opacity to achieve the brilliant white appearance that consumers expect in high-end dining sets. Zirconium silicate provides the optical properties necessary for fine bone china and porcelain tableware.
Grade T and Grade A are preferred for tableware manufacturers targeting export markets in Europe and North America where quality standards are most stringent.
- Exceptional whiteness for premium dining aesthetics
- Food-safe purity with low heavy metal content
- Compatible with lead-free glaze formulations
- Consistent opacity across large production batches
Which Grade for Your Application?
| Application | Recommended Grade | Key Requirement | ZrO₂ Min. | Whiteness |
|---|---|---|---|---|
| Premium sanitaryware (TOTO / JOMOO class) | Grade T | Max whiteness, min Fe₂O₃ | 64.8% | 93–95 |
| High-end sanitaryware & tiles | Grade A | High purity, consistent whiteness | 63.5% | 91–92.5 |
| Mid-range tiles & sanitaryware | Grade B | Cost-performance balance | 62.5% | 88.5–90.5 |
| Polished tiles, smooth glaze frits | Grade B Pro | Fine D50 (0.70 μm) | 62.5% | 88.5–90.5 |
| Export sanitaryware (Chaozhou) | Grade B6 | Value price, stable supply | 60.0% | 88.5–90.5 |
| Fine glaze for export sanitaryware | Grade B6 Pro | Fine grind at economy price | 60.0% | 88.5–90.5 |
| Economy / mass-market tiles | Grade C | Lowest cost per unit opacity | 55.0% | 88–89 |