
If you work in coatings or plastics, you already know the dance: brightness, dispersion, weathering, repeatability—and cost. The Free Sample TiO2 DongFang R5566 Titanium Dioxide is a rutile-grade pigment with zirconia/alumina and organic treatment, produced in Jindi Industrial Park, Dacheng County, Langfang City, Hebei. In day-to-day production, it seems to hit that sweet spot of hiding power and processability. To be honest, the last two years have been a wild ride for pigments supply, but this grade has popped up in specs more often than I expected.
| Product | Rutile TiO2, R-5566 (surface treated with ZrO2/Al2O3 + organic) |
| TiO2 content | ≈ 94% (typical) |
| Brightness (L) | ≈ 97 |
| Oil absorption | ≈ 19 g/100 g |
| pH (aqueous) | 6.5–8.5 |
| Specific gravity | ≈ 4.1 g/cm³ |
| Median particle size | ≈ 0.25 μm |
| Dispersibility | Good in solvent and waterborne systems |
| Weatherability | High (exterior coatings) |
| Certifications | ISO 9001/14001, REACH registered (docs on request) |
Where it’s used—and why it matters:
Customers say hiding power is “punchy,” and batch-to-batch ΔE often stays
Typical steps: ore selection → digestion (sulfate or chloride route depending on facility) → hydrolysis/oxidation → calcination → micronization → ZrO2/Al2O3 + organic treatment → drying/classification → packaging at Langfang base. Testing aligns with ASTM D476 and ISO 591-1; routine checks use ISO 787 parts for whiteness, pH, oil absorption. Service life in exterior acrylics is reported at 5–10 years depending on climate and binder system—your mileage may vary, but that’s what we see in field audits.
| Metric | R-5566 (DongFang) | Ti-Pure R-706 (Chemours) | CR-828 (Tronox) |
|---|---|---|---|
| Surface treatment | ZrO2/Al2O3 + organic | ZrO2/Al2O3 + organic | ZrO2/Al2O3 + organic |
| Gloss/brightness | High | Very high | High |
| Exterior durability | High | Very high | High |
| Dispersion in WB | Fast | Fast | Fast |
| Lead time | Short–moderate | Moderate | Moderate |
| Cost positioning | Value | Premium | Mid–premium |
Bottom line: if you’re balancing gloss, tint strength, and exterior holdout, titania tio2 in the R-5566 configuration is a pragmatic pick. Not flashy, just effective—and, I guess, that’s what keeps production managers calm.