High-Quality Rutile Titanium Dioxide Pigment from China Suppliers - Chlorination Process Factory Production
Rutile titanium dioxide pigment produced by the chloride process. After surface modification by zirconium and aluminum inorganic coating and organic treatment agent, the particle size distribution is moderate, and it has excellent whiteness, dispersion, gloss, hiding power, weather resistance and other characteristics.
CR-718 Shandong Xianghai Chloride-Process Titanium Dioxide is a chloride-route rutile TiO₂ pigment, typically supplied as a white powder. Chloride-process rutile grades are generally characterized by lower impurity content, higher whiteness and brightness, and a more stable undertone, enabling strong and consistent performance across a wide range of formulations. In coatings and plastics, CR-718 provides excellent opacity (hiding power) and high tinting strength, helping improve whiteness, brightness, and gloss, while delivering a cleaner base color and improved batch-to-batch consistency.
CR-718 is commonly manufactured with surface treatments, often combining inorganic coatings (such as silica and/or alumina) with organic treatment. These treatments are intended to enhance wetting and dispersion, reduce oil absorption, and improve compatibility with different binder systems. As a result, the pigment disperses faster with less agglomeration, supports more stable rheology, and can contribute to smoother film appearance, lower haze, and better resistance to floating and flooding in coatings. Rutile TiO₂ also offers strong weatherability, heat resistance, and chemical resistance, helping reduce the risk of chalking, fading, or discoloration under outdoor exposure or harsh service conditions, thereby improving long-term durability.
CR-718 is suitable for architectural and industrial coatings, powder coatings, coil coatings, wood coatings, printing inks, and plastic masterbatches/compounds (PVC, PP, PE, ABS, etc.), as well as papermaking, adhesives, and rubber products. For best results, pre-wet the pigment with the resin/solvent system, select a compatible dispersant, and use high-speed dispersion or milling to reach target fineness for maximum opacity and color consistency. Store in a cool, dry place, keep containers tightly sealed, protect from moisture, heat, and direct sunlight, and follow MSDS guidance for safe handling.
| Property | Value / Specification |
|---|---|
| TiO2 Content | ≥93.50% (m/m) |
| Surface Treatment | ZrO2, Al2O3 |
| Lightness | ≥97% |
| Oil Absorption g/100g | ≤20 |
| L | ≥97 |
| b | ≤2 |
| Tinting Strength | ≥105 |
| Residue on sieve (45μm mesh) | ≤0.05% |
| 105ºC Volatile Matter | ≤0.5% |
| pH-Value of Aqueous Suspension | 6.0～8.5 |
| μm Oil absorption value (g/100g) | ≤30 |
| Electrical resistance of aqueous extract | ≥60 Ω·m |
| Rutile Content | ≥97.5% |
| Iron Content ppm | ≤100 |
CR-718 is a chloride-process rutile titanium dioxide pigment marketed as a general-purpose grade for a wide range of color and coating applications. The product page states that it is produced by the chloride process and then surface-modified with zirconium and aluminum inorganic coating, followed by organic treatment. It also notes a moderate particle size distribution and promotes a mix of excellent whiteness, dispersion, gloss, hiding power, and weather resistance. For many users, that combination is attractive because it suggests one pigment can cover multiple product lines while still giving a clean white and stable performance.
The application list is broad: paints, inks, coatings, leather, colorants, color chips, plastics, rubber, and other fields are mentioned. In coatings, strong hiding power and tinting strength help reduce the dosage needed to reach opacity targets, while good dispersion supports smoother films and more consistent gloss. In inks, controlled dispersion helps minimize haze and supports predictable color development, especially in high-strength white bases. In plastics and rubber, the surface treatment package can improve compatibility with different polymer systems and reduce agglomeration that would otherwise show up as specks or streaks. Because CR-718 is positioned as general purpose, it is best thought of as a flexible baseline rutile TiO2 that can be tuned with system-specific dispersants and processing conditions.
The technical properties listed on the page reinforce its “clean and consistent” positioning. TiO2 content is ≥ 93.50% (m/m), and rutile content is ≥ 97.5%. Surface treatment is ZrO2/Al2O3, with lightness ≥ 97% and tinting strength ≥ 105. Oil absorption is listed as ≤ 20 g/100 g, residue on a 45 um sieve is ≤ 0.05%, and volatile matter at 105°C is ≤ 0.5%. The aqueous suspension pH range is 6.0–8.5, and electrical resistance of the aqueous extract is ≥ 60 ohm·m. The page also notes iron content ≤ 100 ppm and provides color coordinate guidance (L ≥ 97, b ≤ 2), which supports a bright white with controlled undertone. These specifications, together with the chloride-process positioning and surface treatment description, make CR-718 a practical option for users seeking a broadly applicable rutile TiO2 with strong whiteness and durability cues.