Zirconium
Premium micronized opacifier and high-refractory zircon flour for ceramic glazes, sanitaryware, precision investment casting, and glass refractories.
Product Overview: Zirconium Silicate Mineral
Zirconium Minerals & Chemicals (Zircon Sand, Zirconium Silicate, ZrSiO4) represent high-performance, refractory materials with exceptional thermal stability, chemical inertness, high refractive index, and low thermal expansion.
Sakthima supplies premium micronized Zirconium Silicate opacifier powder and milled zircon flour (ZrO2 ≥ 65%) for ceramic tile glazes, sanitaryware, investment casting face-coats, specialty refractories, and nuclear grade zirconium derivatives.
Key Benefits
Brilliant Ceramic Glaze Opacity
Acts as the premier opacifying agent in ceramic wall and vitrified floor tile glazes, delivering deep, brilliant white opacity.
High-Heat Thermal Resistance
Withstands operating temperatures up to 2200°C in glass tank furnaces and high-alumina zircon-mullite refractory blocks.
Precision Investment Casting
Provides thermal shock resistance and non-wetting properties for primary slurry coats in superalloy turbine blade casting.
Scratch & Abrasion Resistance
Increases surface hardness, chip resistance, and abrasion durability in sanitaryware enamel surfaces.
Controlled Micro-Sizing
Superfine particle size (D50 ~ 1.2–1.5 µm) optimizes light scattering and minimizes glaze pinholes.
Applications
Ceramic Wall & Floor Tile Glazes
Sanitaryware Enamel Glazes
Precision Foundry Shell Moulds
Glass Tank Refractory Blocks
Technical Specifications
| Parameter | Opacifier Premium (1.2µ) | Opacifier Standard (1.5µ) | Zircon Flour 325# | Zircon Flour 200# | Natural Zircon Sand |
|---|---|---|---|---|---|
| Zirconia (ZrO2 + HfO2) | ≥ 65.5% | ≥ 65.0% | ≥ 65.0% | ≥ 64.5% | ≥ 65.0% |
| Silica (SiO2) | 32.5% | 33.0% | 33.2% | 33.5% | 32.8% |
| Iron Oxide (Fe2O3) | ≤ 0.06% | ≤ 0.08% | ≤ 0.10% | ≤ 0.12% | ≤ 0.08% |
| Titanium (TiO2) | ≤ 0.12% | ≤ 0.15% | ≤ 0.18% | ≤ 0.22% | ≤ 0.15% |
| Particle Size (D50) | 1.2 µm | 1.5 µm | 15 µm (325#) | 35 µm (200#) | 100–200 µm |
| Specific Gravity | 4.6 g/cm³ | 4.6 g/cm³ | 4.6 g/cm³ | 4.6 g/cm³ | 4.7 g/cm³ |
| Whiteness (Fired) | ≥ 95% | ≥ 93% | ≥ 90% | ≥ 88% | N/A |
| Moisture Content | ≤ 0.2% | ≤ 0.2% | ≤ 0.3% | ≤ 0.3% | ≤ 0.2% |
Why Choose Us?
Advanced Wet Bead Milling
Ground using polyurethane-lined mills with high-purity zirconia beads to eliminate iron contamination.
Ultra-Low Radiation Activity
Strictly tested for low natural radionuclides conforming to international industrial safety standards.
Standard & Five-Star Opacifier Grades
Supplied in standard 5-micron, 1.5-micron, and 1.2-micron grades for tailored opacity.
Consistent Batch Whiteness
Laboratory fired tile plaques verified for color consistency (L* ≥ 95, a* ~ 0, b* ~ 0).