Chrome Antimony Titanium Buff (PBr 24) is a high-performance composite inorganic pigment composed of chromium oxide (Cr₂O₃), titanium dioxide (TiO₂), and antimony oxide (Sb₂O₃), forming a stable rutile structure through high-temperature calcination. This unique crystalline composition grants exceptional thermal stability, excellent weather resistance, strong chemical inertness, and high tinting strength, making it widely applicable in coatings, plastics, inks, ceramics, glass, and construction materials.

I. Structural Analysis and Chemical Stability

I.I Crystal Structure and Performance Impact

Chrome Antimony Titanium Buff (PBr 24) adopts a rutile-type crystalline structure, ensuring superior durability and stable color performance. Key structural characteristics include:

• Rich and Stable Coloration: PBr 24 exhibits a buff to beige hue, depending on the production parameters and particle size, providing excellent opacity and strong tinting power.
• Exceptional Thermal Stability: The pigment remains stable at temperatures exceeding 1000°C, making it ideal for high-temperature applications such as ceramics and industrial coatings.
• Chemical Inertness: It is highly resistant to acids, alkalis, and most organic solvents, ensuring long-term stability in harsh environments.

I.II Thermal Stability and Weather Resistance Mechanism

Chrome Antimony Titanium Buff (PBr 24) demonstrates remarkable stability under extreme conditions, thanks to its robust crystalline structure:

• UV Stability: The pigment resists degradation from UV exposure, maintaining color consistency in outdoor applications.
• Oxidation and Chemical Resistance: Due to its stable metal oxide composition, PBr 24 remains inert under oxidative and reductive environments, preventing fading or discoloration.
• Acid and Alkali Resistance: It exhibits strong resistance to acids and bases, making it suitable for industrial coatings, plastics, and building materials.

II. Dispersibility and Application Techniques

The dispersion characteristics of Chrome Antimony Titanium Buff significantly influence its performance in different applications. Proper processing techniques enhance its efficiency:

1. Coating Applications: PBr 24 is suitable for water-based and solvent-based coatings, offering high color stability and excellent dispersion properties. High-shear dispersion equipment is recommended to reduce agglomeration and improve uniformity.
2. Plastic Coloring: The pigment is compatible with PVC, PE, PP, and ABS, providing high-temperature resistance and superior lightfastness. Processing methods such as twin-screw extrusion and high-speed blending ensure even color distribution.
3. Ink Applications: Chrome Antimony Titanium Buff is widely used in solvent-based and UV-curable inks, particularly in packaging, screen printing, and decorative applications. Surface treatments may be required to improve dispersibility in water-based inks.

III. Key Application Areas

Chrome Antimony Titanium Buff’s superior physical and chemical properties make it ideal for diverse industrial applications, including:

1. Coatings Industry: Used in automotive coatings, industrial coatings, and architectural coatings, offering durability, chemical resistance, and UV stability.
2. Plastics Industry: Suitable for thermoplastics such as PVC, PE, PP, and ABS, ensuring long-lasting, stable coloration.
3. Ink Industry: Applied in solvent-based and UV-curable inks for packaging, screen printing, and high-quality decorative printing.
4. Ceramics & Glass Industry: Utilized in ceramic glazes and glass coloration, maintaining stable color in high-temperature environments.
5. Construction Materials: Used in concrete, tiles, and façade coatings, providing long-lasting pigmentation in exterior applications.