High-Quality Rutile Titanium Dioxide R-219 from China Suppliers and Factory - Excellent Dry Flow and Weathering Resistance
Applications
Applicable Types
Technical Properties
| Property / Standard | Value |
|---|---|
| TiO2% (ISO 591-1) | 93% |
| Inorganic Surface Treatment | SiO2, Al₂O3 |
| Organic Surface Treatment | Yes |
| Classification (ISO 591-1) | R2 |
| Color (ISO 787-25) | △E≤0.5 |
| Relative Scattering Force (ISO 787-24) | 95-105% |
| Density (ISO 787-10) | 4.0g/cm3 |
| CIE(L*) (GB/T 1864-2012) | 95.4 |
| Reducing Power (TCS) | 2000 |
| pH Value (ISO 787-9) | 7.2 |
| Oil Absorption (ISO 787-5) | 19g/100g |
| Residue on 45um (ISO 787-18) | 0.01% |
| Resistivity (ISO 787-14) | 100Ω.m |
| Volatile at 105℃ (ISO 787-2) at packaging | 0.4% |
Information
R-219 is described as a rutile titanium dioxide pigment built for processing stability in applications that see significant heat history and demanding service conditions. Rather than focusing only on gloss, the product page highlights excellent dry flow, strong resistance to high temperature and yellowing, and good weathering resistance. These attributes are especially relevant in plastics and powder coating production, where the pigment must move smoothly through feeding equipment, disperse under shear, and maintain a clean shade after extrusion or baking.
The listed applications include PVC profiles, PVC pipes, powder coatings, road paints, and other weather-durable plastic products. All of these end uses combine thermal processing with long-term exposure. In PVC extrusion, residence time and temperature can push pigments toward undertone drift; a grade marketed for anti-yellowing helps keep profiles and pipes looking bright after processing. In powder coatings and road markings, the pigment must withstand bake conditions and then resist sunlight-driven degradation in service. From a manufacturing standpoint, good dry flow improves gravimetric feeding consistency and reduces variation in pigment concentration, which helps keep color and opacity stable from run to run.
The technical profile shown on the page frames R-219 as a controlled, general-purpose rutile grade with processing emphasis. TiO2 is 93% with silica/alumina (SiO2/Al2O3) inorganic surface treatment and organic surface treatment. ISO 591-1 classification is R2 and the stated color difference control is Delta E ≤ 0.5. Relative scattering force is 95–105% and density is 4.0 g/cm3, supporting strong opacity in typical polymer and coating matrices. CIE L* is listed as 95.4 with reducing power (TCS) 2000, indicating solid brightness and tint contribution. Other values include pH 7.2, oil absorption 19 g/100 g, residue on 45 um 0.01%, resistivity 100 ohm·m, and volatiles at 105°C at packaging 0.4%. Overall, the product description and data position R-219 as a rutile TiO2 option for PVC, powder coating, and outdoor-exposed plastics where flow, heat stability, and shade retention are priorities.