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High thermal stability up to 600 °C, ensuring color retention during high-temperature processing.
Excellent UV resistance and weatherfastness for long-term outdoor performance.
Low oil absorption (<18 g/100g), enabling efficient dispersion and improved formulation viscosity control.
Non-toxic, heavy-metal-free composition compliant with RoHS and REACH regulations.
Consistent particle size distribution for uniform tinting strength and minimal batch-to-batch variation.
Automotive coatings requiring high durability and gloss retention.
Plastic coloration for engineering resins including polypropylene, ABS, and polycarbonate.
Architectural coatings and exterior wall paints demanding long-term color stability.
Industrial powder coatings subjected to curing temperatures above 180 °C.
Ceramic glazes and vitreous enamel applications where chemical inertness is critical.
| Chemical Type | Mixed Metal Oxide (Fe–Mn–Cr spinel) |
| Product Form | Fine dry powder |
| Appearance | Jet-black, free-flowing powder |
| Primary Applications | Coatings, plastics, ceramics, powder coatings |
| Key Features | Thermal stability, UV resistance, low oil absorption, non-toxic |
| Benefits | Color consistency, regulatory compliance, ease of dispersion |
| Particle Size (D50) | 0.8–1.2 µm |
| pH (10% aqueous slurry) | 6.5–7.5 |
Q1: What is the primary chemical composition of CATHAYPURE Black B2320?
A: CATHAYPURE Black B2320 is a high-performance inorganic black pigment based on a complex mixed-metal oxide system, engineered for thermal and chemical stability. Its exact composition is proprietary, but it contains no heavy metals such as lead, cadmium, or mercury, and complies with global regulatory expectations for restricted substances in industrial pigments.
Q2: Is this pigment suitable for use in food-contact plastics or coatings?
A: CATHAYPURE Black B2320 is not certified for direct food-contact applications under current major food safety frameworks. It is formulated for demanding industrial uses—including engineering plastics, architectural coatings, and industrial finishes—where high heat resistance and UV stability are required. Customers requiring food-contact compliance should consult Cathay technical support for alternative qualified grades.
Q3: How does B2320 perform under high-temperature processing conditions?
A: This pigment exhibits excellent thermal stability and is routinely processed in polymer systems up to 300 °C without significant color shift or decomposition. It maintains dispersion integrity and color strength during extrusion, injection molding, and high-bake coating curing cycles, making it well-suited for engineering thermoplastics and powder coatings.
Q4: What types of resin systems is B2320 compatible with?
A: B2320 demonstrates broad compatibility across polar and non-polar polymer matrices, including polyolefins (PP, PE), engineering resins (PA, PBT, PC), PVC, and acrylic- and polyester-based coatings. Optimal dispersion typically requires standard pigment dispersants or carrier resins suited to the target application matrix.
Q5: What is the recommended dosage range for achieving full opacity in plastic applications?
A: Dosage depends on substrate, desired opacity level, and processing method, but typical loading ranges from 0.1% to 2% by weight in most thermoplastic and thermoset systems. Lower concentrations often suffice for deep black shades due to its high tinting strength and low light-scattering profile.
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