Description
R-216 is a versatile TiO2 that offers exceptional performance in exterior applications calling for high weathering resistance coatings.
R-216 is a premium-grade, rutile titanium dioxide pigment engineered specifically for extreme durability in high-exposure exterior applications. It features an advanced inorganic surface treatment based on silicon and aluminum oxides, which provides an exceptionally robust and inert barrier against photochemical degradation.
This specialized treatment is key to its outstanding weatherability, offering superior resistance to chalking, gloss loss, and color change even under prolonged UV exposure and harsh environmental conditions. R-216 simultaneously delivers excellent optical performance with high hiding power and maintains excellent dispersibility in complex coating formulations, ensuring ease of processing and optimal film integrity.
Typical Properties
| Processing Method | Sulfate |
| Crystal Form | Rutile |
| Inorganic Surface Treatment | Silicon and Aluminum Compounds |
| Organic Surface Treatment | Yes |
| Classification (ISO 591-1) | R2 |
| Color (ISO 787-25) | △E≤0.5 |
| Relative Scattering Power (ISO 787-24) | 95% - 105% |
| Density (ISO 787-10) | 4.0g/cm3 |
| Dispersion in Polyester System (GB/T 21868.3-2008) | ≤27.5μm |
Key Features
Product Parameters
| TiO2%（ISO 591-1） | 93% |
| CIE L* (GB/T 1864-2012) | 95 |
| Reducing Power（TCS） | 2050 |
| pH Value（ISO 787-9） | 7.8 |
| Oil Absorption（ISO 787-5） | 19g/100g |
| Residue on 45μm（ISO 787-18） | 0.01% |
| Resistivity of water extraction（ISO 787-14） | 150Ω·m |
| Volatiles at 105℃（ISO 787-2）at packaging | 0.4% |
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