High thermal stability up to 800°C, suitable for high-temperature ceramic and enamel applications.
Excellent UV resistance and lightfastness, ensuring long-term color retention in outdoor exposure.
Non-toxic composition compliant with REACH and RoHS directives for safe industrial handling.
Superior chemical inertness—resistant to acids, alkalis, and solvents under typical processing conditions.
Fine particle size distribution enabling smooth dispersion and uniform black shade development.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance enamels for domestic appliances and industrial metal coatings.
Colorants in refractory materials including furnace linings and kiln furniture.
Pigmentation of inorganic-based construction materials such as colored concrete and terrazzo.
Functional black pigment in solar absorber coatings for thermal energy systems.
| Chemical Type | Mixed-metal oxide (Fe–Cr–Mn spinel) |
| Product Form | Free-flowing dry powder |
| Appearance | Jet-black granular powder |
| Primary Applications | Ceramics, enamels, refractories, construction pigments |
| Key Features | Thermally stable, chemically inert, non-volatile, heavy-metal-free |
| Benefits | Consistent batch-to-batch color, low dust generation, easy wet/dry dispersion |
| pH (10% aqueous slurry) | 6.5 – 7.5 |
| Moisture Content (max.) | 0.5 wt% |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Black BA33?
A: Cathay CATHAYCOAT Black BA33 is a high-performance inorganic black pigment based on a mixed-metal oxide system, engineered for thermal and chemical stability. It does not contain elemental carbon or organic dyes, and its composition is optimized to deliver consistent jetness and opacity without compromising durability.
Q2: Is BA33 suitable for use in heat-sensitive polymer systems such as polyolefins or PVC?
A: Yes — BA33 exhibits excellent thermal stability and is widely used in demanding polymer processing environments, including extrusion and injection molding of polyolefins, PVC, and engineering thermoplastics. Its inorganic nature ensures minimal degradation or color shift even at elevated processing temperatures.
Q3: How does BA33 compare to carbon black in terms of UV resistance and weathering performance?
A: Unlike carbon black, which can promote polymer photodegradation under prolonged UV exposure, BA33 offers inherently superior UV inertness and contributes to enhanced long-term weathering resistance in outdoor applications. It provides stable black coloration without accelerating polymer chain scission.
Q4: Can BA33 be dispersed in aqueous systems for water-based coatings or inks?
A: Yes — BA33 is compatible with both aqueous and solvent-based formulations. With appropriate surfactant selection and dispersion protocols, it achieves stable, fine-particle dispersions suitable for high-gloss architectural coatings, industrial waterborne paints, and functional inks.
Q5: What is the typical dosage range for achieving full opacity in polymer masterbatches?
A: Dosage depends on formulation requirements and desired opacity level, but BA33 is typically used at low concentrations due to its high tinting strength and hiding power. In most polymer masterbatches, effective loading generally ranges from 0.1% to 2% by weight.
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