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China CR-718 Titanium Dioxide Pigment Suppliers - Rutile Chlorination Process Factory with Excellent Quality
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.
Application Fields
● Paints & Coatings
● Printing Inks
● Plastics (PVC, PP, PE, ABS, etc.)
● Leather & Rubber
● Colorants & Color Chips
● Papermaking & Adhesives
Applicable Types
✔ General Purpose
Technical Properties
| Property Item | Specifications |
|---|---|
| TiO2 Content | ≥93.50%(m/m) |
| Surface Treatment | ZrO2, Al2O3 |
| Lightness | ≥97% |
| Oil Absorption (g/100g) | ≤20 |
| L (Color Coordinate) | ≥97 |
| b (Color Coordinate) | ≤2 |
| Tinting Strength | ≥105 |
| Residue on sieve (45μm mesh) | ≤0.05% |
| 105℃ 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 |
Product Information & Performance
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 is surface-modified with zirconium and aluminum inorganic coating, followed by organic treatment. It features a moderate particle size distribution and promotes a mix of excellent whiteness, dispersion, gloss, hiding power, and weather resistance.
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. In plastics and rubber, the surface treatment package improves compatibility with different polymer systems and reduces agglomeration that would otherwise show up as specks or streaks.
The technical specifications reinforce its “clean and consistent” positioning. With TiO2 content ≥ 93.50% and rutile content ≥ 97.5%, it offers high brightness (L ≥ 97) and controlled undertone (b ≤ 2). These characteristics make CR-718 a practical option for users seeking a broadly applicable rutile TiO2 with strong durability and whiteness.
Frequently Asked Questions
What are the primary benefits of the chloride process used for CR-718?
The chloride process results in a pigment with lower impurity content, higher whiteness, and a more stable undertone compared to other methods, ensuring consistent performance across different batches.
Which surface treatments are applied to CR-718?
CR-718 is surface-modified with zirconium (ZrO2) and aluminum (Al2O3) inorganic coatings, along with a specialized organic treatment to enhance dispersion and compatibility.
Is CR-718 suitable for outdoor applications?
Yes, as a rutile TiO2, it offers strong weatherability and chemical resistance, which helps prevent chalking, fading, or discoloration when exposed to harsh outdoor conditions.
How does CR-718 improve coating quality?
It provides excellent hiding power and tinting strength, which improves opacity and gloss while supporting stable rheology and reducing the risk of floating or flooding in coating systems.
What are the recommended storage conditions?
It should be stored in a cool, dry place with containers tightly sealed. It is important to protect the pigment from moisture, heat, and direct sunlight.
What industries commonly use this general-purpose grade?
CR-718 is widely used in architectural and industrial coatings, powder coatings, printing inks, plastic masterbatches (like PVC, PE, ABS), rubber products, and papermaking.