Detailed Description:
R-6618 is produced using the sulfate process and treated with alumina and organic coatings to enhance dispersion, improve hydrophobic properties, and prevent yellowing during processing. Its fine particle size provides high opacity, superior tinting strength, and smooth finish. This grade is ideal for PVC profiles, pipes, cables, engineering plastics, rubber, and decorative coatings, ensuring long-term color stability, resistance to chalking, and excellent processing performance.

Technical Specifications:
• Crystal Form Rutile
• TiO₂ Content ≥ 94 %
• Brightness (ISO) ≥ 98 %
• Oil Absorption 16 – 20 g/100 g
• pH (aqueous slurry) 6.5 – 8.5
• Specific Gravity ~4.1 g/cm³
• Refractive Index ~2.70 – 2.73
• Surface Treatment Alumina + Organic coating
• Volatile Matter (105 °C) ≤ 0.5 %
• Tint Strength (Relative to Standard) 100 ± 2 %
• Weather Resistance Excellent for outdoor applications
(Specifications are indicative and may vary slightly depending on batch or supplier.)

Available Brands:
• Kronos R-6618
• Venator/Huntsman R-6618
• Tronox R-6618
• Chinese OEM R-6618 (equivalent international grades)