R838 Rutile
titanium dioxide pigment – Premium Performance for Paints, Plastics, and Industrial Applications Discover R838, a high-performance
Rutile Titanium Dioxide pigment engineered for superior optical properties and durability across diverse industrial sectors. This advanced inorganic-organic surface-treated pigment delivers exceptional whiteness, excellent gloss, outstanding hiding power, and robust weather resistance—making it an ideal choice for water-based coatings, latex paints, powder coatings, inks, paper manufacturing, and plastic processing. With its bluish tone and optimized particle size distribution, R838 ensures vibrant color consistency while enhancing product longevity under harsh environmental conditions. Key Features: - High rutile phase conversion (>97.5%) for enhanced UV stability - Exceptional tinting strength (≥108% vs standard) for efficient use - Low volatile matter (<0.8%) and minimal water absorption (<0.5%) for improved storage and handling - Excellent dispersion characteristics in both aqueous and solvent-based systems - Stable pH range (6.5–8.5) in suspension, ensuring compatibility with various binders - Organic surface treatment for improved compatibility and reduced agglomeration Detailed Description: R838 is a premium-grade
titanium dioxide pigment coated with a blend of silicon-aluminum oxides and organic modifiers, which significantly improves its performance in demanding applications. The core structure consists of nanoscale rutile crystals (average diameter: 0.22–0.28 µm), offering optimal light scattering efficiency and high opacity. Its unique surface chemistry enhances wetting, reduces viscosity in formulations, and prevents sedimentation during storage or application. Unlike conventional grades, R838 maintains consistent color intensity over time—even when exposed to sunlight, moisture, or temperature fluctuations—making it particularly valuable in exterior paint systems and UV-sensitive plastic products. This pigment excels in environments where long-term aesthetics and mechanical integrity are critical. Whether used in architectural coatings requiring fade resistance or in automotive plastics needing impact resilience, R838 provides reliable results without compromising on cost-effectiveness. Its low oil absorption (≤21 g/100g) allows for higher loading levels without affecting formulation viscosity, enabling manufacturers to reduce raw material costs while maintaining quality. Application Scenarios: Ideal for waterborne and solvent-based paint systems including interior and exterior wall coatings, wood finishes, and metal protection layers. In the plastics industry, R838 acts as a powerful UV stabilizer, preventing yellowing, embrittlement, and loss of mechanical properties caused by prolonged sun exposure. It’s also widely adopted in inkjet and flexographic printing inks for sharp image definition, as well as in paper coating operations to improve brightness and printability. For industries seeking eco-friendly alternatives, this pigment supports low-VOC formulations due to its excellent dispersibility in water-based media. Customer Feedback: Users consistently praise R838 for its ability to deliver consistent performance across different production batches, reducing variability in final product appearance. Many report significant improvements in gloss retention and resistance to chalking in outdoor applications compared to other rutile titania grades. In plastic compounding, users note that R838 enhances both visual appeal and durability, especially in injection-molded parts exposed to direct sunlight. Its ease of incorporation into existing processes—without requiring major equipment adjustments—has been highlighted as a key advantage. Frequently Asked Questions: What makes R838 stand out from other titanium dioxide pigments? Its dual-layer coating—combining inorganic silica-alumina and organic modifiers—offers superior dispersion, chemical stability, and compatibility with a wide range of resin systems, setting it apart from uncoated or single-coated alternatives. Is it suitable for environmentally conscious formulations? Yes, R838 supports low-VOC and water-based systems, aligning with global sustainability goals while maintaining high performance standards. How does it perform in extreme climates? Thanks to its high rutile content and protective surface treatment, R838 demonstrates excellent resistance to thermal degradation and UV-induced discoloration, making it ideal for tropical, arid, or high-altitude regions. Can it be used in food-grade or medical applications? While primarily designed for industrial uses such as coatings and plastics, R838 meets stringent purity requirements and can be considered for non-food contact applications depending on regulatory compliance in specific markets.
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