China Supplier Factory Titanum Dioxide Rutile TiO2 R-216 with Excellent Weathering Resistance and High Hiding Power
| Property | 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 |
| Dispersion in Polyester System (GB/T 21868.3-2008) | ≤27.5 um |
| CIE (L*) (GB/T 1864-2012) | 95.0 |
| Reducing Power (TCS) | 2050 |
| pH Value (ISO 787-9) | 7.8 |
| Oil Absorption (ISO 787-5) | 19g/100g |
| Residue on 45um (ISO 787-18) | 0.01% |
| Resistivity of water extraction (ISO 787-14) | 1502.m |
| Volatile at 105℃ (ISO 787-2) at packaging | 0.4% |
R-216 is presented as a rutile titanium dioxide pigment aimed at coating systems that need strong outdoor durability without sacrificing optical performance. The product page emphasizes excellent weathering resistance along with high hiding power, high gloss, and good dispersibility. For formulators, that message translates into a pigment intended to keep coatings bright and opaque over time while remaining practical to manufacture. Weathering resistance matters because loss of gloss, chalking, or shade drift outdoors can quickly undermine the perceived quality of architectural and industrial coatings.
The applications listed include high-weathering water-based paints, solvent-based paints, and powder coatings. This is a meaningful spread: exterior waterborne paints need stable dispersion and resistance to chalking, solvent-borne industrial coatings often prioritize gloss and smoothness, and powder coatings add the constraint of bake stability. In waterborne systems, proper pre-wetting and dispersant selection are critical to avoid flocculation that can show up as shade shift or viscosity instability. In powder coatings, controlling particle dispersion in the resin melt helps maintain film smoothness and consistent gloss.
The technical data listed on the page supports the grade’s “durable coatings” positioning. 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 given as 95–105% with density 4.0 g/cm3, and dispersion in a polyester system is reported as ≤ 27.5 um. Additional values include CIE L* 95.0 and reducing power (TCS) 2050, which indicate a strong tinting/hiding contribution for typical formulations. The listed pH is 7.8, oil absorption is 19 g/100 g, residue on 45 um is 0.01%, and volatiles at 105°C at packaging are 0.4%. Taken together, the description and data point to a rutile TiO2 designed to deliver consistent whiteness, opacity, and gloss in coating systems that must endure outdoor exposure.