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High thermal stability up to 800 °C, suitable for high-temperature coating and ceramic applications.
Excellent UV resistance and lightfastness, ensuring long-term color retention outdoors.
Non-toxic, heavy-metal-free formulation compliant with RoHS and REACH regulations.
Superior dispersion performance in aqueous and solvent-based systems without agglomeration.
Consistent particle size distribution for uniform black shade and optimal hiding power.
Architectural and industrial coatings requiring durable, weather-resistant black pigmentation.
Ceramic glazes and porcelain enamel for high-fire kiln applications.
Plastic coloration for engineering thermoplastics including polyamide and polypropylene.
Construction materials such as colored concrete, terrazzo, and roofing tiles.
Automotive OEM and refinish coatings where heat resistance and chemical inertness are critical.
| Chemical Type | Mixed-Metal Oxide (Fe–Cr–Mn spinel) |
| Product Form | Fine dry powder |
| Appearance | Jet-black granular powder |
| Primary Applications | Coatings, ceramics, plastics, construction materials |
| Key Features | Heat resistant, UV stable, non-volatile, chemically inert |
| Benefits | Low migration, no blooming, excellent compatibility with binders |
| pH (10% aqueous slurry) | 6.5 – 7.5 |
| Moisture Content (wt%) | ≤ 0.5% |
Q1: What is the primary chemical composition of CATHAYCOAT Black BA31?
A: CATHAYCOAT Black BA31 is a high-performance inorganic black pigment based on mixed metal oxides, engineered for thermal and chemical stability. Its exact composition is proprietary, but it contains no elemental carbon or organic dyes, distinguishing it from carbon blacks and organic pigments.
Q2: Is BA31 suitable for high-temperature coating applications, such as coil coatings or powder coatings?
A: Yes — BA31 is specifically formulated to retain color integrity and dispersion stability under elevated processing and curing temperatures, making it well-suited for coil coatings, powder coatings, and other thermoset systems where thermal resistance above 200 °C is required.
Q3: How does BA31 compare to carbon black in terms of UV stability and weather resistance?
A: Unlike carbon black, which can promote photo-oxidative degradation in certain resin systems, BA31 exhibits inherently high UV absorption without catalytic side effects. It delivers superior long-term color retention and gloss stability in exterior architectural and industrial coatings exposed to sunlight and moisture.
Q4: What is the typical dosage range when incorporating BA31 into solvent-based and water-based industrial coatings?
A: Dosage depends on formulation requirements and desired opacity, but BA31 is typically used at low concentrations due to its high tinting strength and hiding power. In most industrial coating systems, effective loading generally ranges from 0.1% to 2% by weight of total formulation.
Q5: Does BA31 require special surface treatment for optimal dispersion in acrylic or polyester resins?
A: BA31 is supplied with a tailored inorganic surface modification that enhances compatibility and wetting in both polar and non-polar polymer matrices. While standard high-shear dispersion equipment is sufficient, pre-wetting and controlled addition are recommended to achieve optimal deagglomeration and long-term suspension stability.
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E-mail: wangxingqiang@ericwchem.com
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