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High thermal stability up to 1000 °C, suitable for high-temperature ceramic and refractory applications.
Excellent lightfastness and weather resistance, ensuring long-term color retention under UV exposure.
Non-toxic composition compliant with global regulatory standards including EN 71-3 and RoHS.
Superior dispersion stability in aqueous and solvent-based systems without flocculation.
Consistent batch-to-batch colorimetric performance (ΔE < 0.8 under D65 illumination).
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance coatings for industrial equipment and heat-resistant surfaces.
Coloration of refractory materials including firebricks, kiln furniture, and furnace linings.
Pigmentation of construction materials such as concrete pavers, terrazzo, and stucco.
Functional coloring in specialty plastics requiring thermal and chemical inertness.
| Chemical Type | Mixed-metal oxide (Fe–Mn–Cr spinel) |
| Product Form | Fine dry powder |
| Appearance | Uniform brown granular powder |
| Primary Applications | Ceramics, refractories, architectural coatings, concrete products |
| Key Features | Thermal stability, UV resistance, low solubility, heavy-metal free |
| Benefits | Color consistency, processing ease, regulatory compliance, environmental safety |
| pH (10% aqueous suspension) | 6.8–7.4 |
| Particle Size (D50) | 1.2–1.8 µm |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Brown BRS85?
A: Cathay CATHAYCOAT Brown BRS85 is a mixed-metal oxide pigment based on iron and manganese oxides, engineered for thermal and chemical stability in demanding industrial coating systems.
Q2: Is this pigment suitable for high-temperature curing applications, such as coil coatings or powder coatings?
A: Yes — BRS85 exhibits excellent thermal stability and retains its color integrity during typical industrial curing cycles up to 250°C, making it well-suited for coil coatings, powder coatings, and other heat-cured systems.
Q3: How does BRS85 perform in UV-exposed outdoor applications?
A: As an inorganic oxide pigment, BRS85 offers inherently high UV resistance and lightfastness, supporting long-term color retention in exterior architectural coatings, automotive refinishing, and industrial maintenance paints.
Q4: Can BRS85 be used in water-based coating systems?
A: Yes — BRS85 is compatible with both solvent-borne and water-based industrial coating formulations, including acrylic, epoxy, and polyurethane dispersions, when properly dispersed using standard wetting and stabilization techniques.
Q5: What is the typical dosage range for optimal color development and opacity?
A: Dosage depends on formulation requirements and desired shade intensity, but BRS85 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight — due to its strong tinting strength and high hiding power.
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