Xianghai Brand Titanium Dioxide Cr-6618 - High Coverage and Brightness for Paint and Coatings
Product Overview
Xianghai CR-6618 is a high-performance rutile titanium dioxide pigment manufactured via the advanced chlorination process, featuring dual surface modification with zirconium-aluminum inorganic coatings and organic treatment agents. Engineered for universal compatibility, it delivers exceptional optical properties, dispersion efficiency, and durability across coatings, plastics, inks, and specialty applications. With TiO₂ purity exceeding 94.65% and industry-leading iron content control (17 ppm), CR-6618 sets benchmarks in whiteness (L* ≥97.00), tinting strength (112% vs. industry standard), and process stability. Its optimized particle size distribution (D50: 0.25–0.35 μm) ensures maximum light scattering efficiency, achieving opacity and gloss balance unmatched by conventional sulfate-process alternatives.
Technical Specifications & Performance Data
Parameter | Standard Requirement | CR-6618 Test Result | Test Method |
---|---|---|---|
TiO₂ Content (%) | ≥93.50 | 94.65 | ISO 591-1 |
Rutile Phase Content (%) | ≥97.5 | 99.82 | ASTM D3720 |
*Brightness (L)** | ≥97.00 | ≥97.00 | CIE LAB (ISO 7724) |
*Color Tone (b)** | ≤2.00 | ≤2.00 | CIE LAB (ISO 7724) |
Oil Absorption (g/100g) | ≤20 | 17 | ASTM D281 |
Residue on 45μm Sieve (%) | ≤0.02 | 0.009 | ISO 787-7 |
Resistivity (Ω·m) | ≥60 | 107 | ASTM D1125 |
Oil Dispersion Fineness (μm) | ≤30 | 10 | ISO 1524 (Hegman Gauge) |
pH Value | 6.0–8.5 | 7.47 | ASTM E70 |
105°C Volatiles (%) | ≤0.5 | 0.33 | ISO 787-2 |
Iron Content (ppm) | ≤100 | 17 | ICP-OES |
Tinting Strength (%) | ≥105 | 112 | ASTM D2745 |
Advanced Surface Modification Technology
1. Zirconium-Aluminum Inorganic Coating
- Durability Enhancement:
- Forms a dense 8–12 nm oxide layer, improving UV resistance (QUV-B 2,000h ΔE <1.5).
- Reduces photocatalytic activity by 60% compared to uncoated grades.
- pH Stability: Neutral coating (pH 7.47) minimizes resin compatibility issues in both acidic (epoxy) and alkaline (latex) systems.
2. Organic Surface Treatment
- Dispersion Optimization:
- Lowers oil absorption to 17 g/100g, enabling high-PVC formulations (up to 45%) without compromising flow.
- Achieves 10 μm dispersion fineness, reducing milling time by 30–50%.
- Hydrophobic Control: Balanced HLB value ensures stability in solvent-borne (polar/non-polar) and waterborne systems.
Performance Advantages
1. Optical Excellence
- Superior Opacity:
- Scattering coefficient of 2.15 m²/g (Kubelka-Munk theory).
- Hiding power equivalent to 112% R996 reference standard.
- Neutral Undertone: b* ≤2.00 enables clean tinting in pastels and deep shades.
2. Process Efficiency
- Energy-Saving Dispersion:
Dispersion Parameter CR-6618 Conventional Grades Time to Hegman 7 (minutes) 15–20 30–45 Dispersion Energy (kWh/ton) 18 32 Viscosity Stability (24h) ±5% ±15% - Thermal Stability: Withstands extrusion temperatures up to 280°C in engineering plastics.
3. Weathering Resistance
- Outdoor Durability:
Test Condition CR-6618 Performance QUV-B Accelerated Aging 2,000 hours ΔE 1.2, Gloss Retention 92% Florida Natural Exposure 5 years Chalking Rating 8 (ASTM D4214) Salt Spray Resistance 1,000 hours (ASTM B117) Blistering Degree 8M
Application-Specific Solutions
1. Coatings Industry
- Architectural Coatings:
- Achieves 98% contrast ratio at 18 μm DFT (ASTM D2805).
- Passes 15,000 scrub cycles (ASTM D2486).
- Automotive OEM:
- Compatible with 2K polyurethane clearcoats (85° gloss ≥95).
- Meets GMW14872 stone chip resistance requirements.
2. Plastics & Masterbatches
- Engineering Plastics:
- Maintains impact strength in PA6 (>45 kJ/m²) at 8% loading.
- UL94 V-0 compliance in flame-retardant formulations.
- Film Applications:
- Reduces haze to <5% in 50μm LLDPE films (ASTM D1003).
3. Inks & Specialty Coatings
- Gravure Printing Inks:
- Achieves ≤1.5 Delta E in Pantone color matching.
- Enables 300 m/min printing speeds without misting.
- Leather Finishes:
- Enhases abrasion resistance (>10,000 cycles, SATRA TM31).
Manufacturer Profile: Shandong Xianghai Titanium Resources Technology Co., Ltd.
Corporate Capacity & Industry Leadership
- Production Scale:
- Titanium Dioxide: 610,000 TPA (Current + Expansion Projects).
- Operational: 150,000 TPA chloride process.
- Under Construction: 360,000 TPA chloride process (2025 completion).
- Integrated Industrial Chain:
- 1,000,000 TPA alumina production.
- 600,000 TPA sulfuric acid captive supply.
- Titanium Dioxide: 610,000 TPA (Current + Expansion Projects).
- Certifications & Honors:
- ISO 9001/14001/45001 certified.
- Ranked among China’s Top 500 Manufacturing Enterprises.
- Leading player in Shandong Marine Chemical Industry.
R&D Capabilities
- Innovation Platform:
- National Enterprise Technology Center.
- Titanium Dioxide Engineering Laboratory (CNAS Accredited).
- Patented Technologies:
- 52 invention patents, including Chloride Process Surface Modification Method (ZL202010XXXXXX).
- Contributor to 6 national/industry standards.
Supply Chain & Procurement
Spot Market & Wholesale Options
- Global Stock Availability:
Region Warehouse Inventory (MT) Delivery Lead Time Asia-Pacific Qingdao Bonded Zone 8,000 3–5 working days Europe Rotterdam Hub 3,500 7–10 working days North America Houston Terminal 2,200 10–12 working days - Pricing Structure:
- Spot Purchases: Tiered pricing from 20 MT lots.
- Annual Contracts: Volume rebates (3–8% for 1,000+ MT commitments).
Logistics Assurance
- Packaging:
- 25 kg multi-layer paper bags (waterproof, UV-resistant).
- 1,000 kg bulk containers (FIBC with anti-static lining).
- Quality Traceability:
- Batch-specific COA with QR code verification.
- Third-party inspection services available (SGS/BV).
Sustainability Commitment
- Eco-Friendly Production:
- Closed-loop chloride process (99.8% HCl recovery).
- Zero liquid discharge (ZLD) wastewater management.
- Circular Economy:
- Utilizes 85% recycled process heat.
- Partners with DSM for byproduct upcycling.
Technical Support Services
- Application Laboratories:
- Global network offering formulation optimization.
- Free sample testing against competitor products.
- Defect Diagnosis:
- SEM-EDS analysis for coating/polymer failure cases.
Conclusion
Xianghai CR-6618 redefines quality benchmarks for universal-grade titanium dioxide through precision chlorination processing and cutting-edge surface engineering. Its balanced performance profile addresses the evolving demands of global coatings, plastics, and specialty chemical industries, delivering unparalleled opacity, dispersion ease, and durability. Backed by Shandong Xianghai’s integrated industrial ecosystem and 610,000 TPA production capacity, CR-6618 guarantees stable supply continuity while maintaining strict compliance with international quality and environmental standards.



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Business Type | Online Store | Company Size | 2000 |
Established | December 18, 2014 | ||
Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
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