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High thermal stability up to 1000°C, ensuring color retention in high-temperature processing.
Excellent lightfastness and weather resistance, suitable for long-term outdoor exposure.
Non-toxic, heavy-metal-free formulation compliant with global regulatory standards including EN 71-3 and RoHS.
Superior dispersion stability in aqueous and solvent-based systems without requiring surface treatment.
Consistent batch-to-batch color reproducibility and narrow particle size distribution (D50 ≈ 0.8–1.2 µm).
Ceramic glazes and bodies for sanitaryware and architectural tiles.
High-performance architectural coatings and façade paints.
Plastic coloration for automotive interior components and construction profiles.
Colored concrete, terrazzo, and precast concrete products.
Specialty inks for industrial printing on heat-resistant substrates.
| Chemical Type | Mixed metal oxide (Fe–Mn–Cr spinel) |
| Product Form | Free-flowing dry powder |
| Appearance | Uniform reddish-brown granular powder |
| Primary Applications | Ceramics, architectural coatings, plastics, concrete |
| Key Features | Thermal stability, UV resistance, chemical inertness |
| Benefits | Low dosage requirement, excellent hiding power, non-flocculating |
| pH (10% aqueous slurry) | 6.5–7.5 |
| Volatile Content (105°C, 2 h) | ≤ 0.5 wt% |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Brown BRS88?
A: Cathay CATHAYCOAT Brown BRS88 is a high-performance inorganic pigment based on mixed metal oxides, formulated to deliver stable brown coloration with excellent thermal and chemical resistance. Its exact proprietary composition is optimized for performance in demanding industrial coatings and is not disclosed as a single compound.
Q2: Is this pigment suitable for high-temperature curing applications, such as coil coating or powder coating?
A: Yes, BRS88 is specifically engineered for thermal stability and maintains its color integrity and dispersion characteristics under elevated processing temperatures commonly encountered in coil coating, powder coating, and certain ceramic-based systems.
Q3: How does BRS88 perform in terms of lightfastness and weather resistance compared to organic brown pigments?
A: As an inorganic pigment, BRS88 offers significantly superior lightfastness, UV stability, and long-term weather resistance versus conventional organic browns—making it well-suited for exterior architectural coatings, automotive refinishing, and other applications requiring durable color retention.
Q4: Can BRS88 be used in waterborne coating systems without compromising dispersion stability or tinting strength?
A: Yes, BRS88 is surface-treated to ensure good compatibility and stable dispersion in both solvent-borne and waterborne systems. Optimal performance typically requires standard dispersion protocols—including appropriate wetting agents and high-shear mixing—to achieve full development of color strength and uniformity.
Q5: What is the typical dosage range for achieving optimal color strength and opacity in industrial coatings?
A: Dosage depends on formulation requirements and desired shade intensity, but BRS88 is generally effective at low concentrations—typically ranging from 0.1% to 2% by weight in the final coating system—due to its high inherent tinting strength and efficient light absorption properties.
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