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High thermal stability up to 800 °C, suitable for high-temperature ceramic and enamel applications.
Excellent lightfastness and weather resistance, maintaining color integrity under prolonged UV exposure.
Non-toxic composition compliant with REACH and RoHS directives for safe industrial handling.
Strong tinting strength and consistent batch-to-batch color reproducibility.
Low oil absorption enabling efficient dispersion in both aqueous and solvent-based systems.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance enamel coatings for domestic appliances and industrial equipment.
Colorants in refractory materials including furnace linings and kiln furniture.
Pigmentation of glass frits and low-melting-point specialty glasses.
Functional coloring agent in heat-resistant plastics for automotive under-hood components.
| Chemical Type | Mixed-metal oxide (Fe–Cr–Al spinel-based) |
| Product Form | Free-flowing fine powder |
| Appearance | Brilliant reddish-brown granular powder |
| Primary Applications | Ceramics, enamels, refractories, glass |
| Key Features | Thermal stability, chemical inertness, non-volatility |
| Benefits | No heavy metals, no halogen content, low dust generation |
| pH (10% aqueous suspension) | 6.5–7.5 |
| Particle Size (D50) | 1.2–1.8 µm |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RC14?
A: Cathay CATHAYCOAT Red RC14 is a high-performance inorganic red pigment based on a modified iron oxide–chromium oxide composite system, engineered for enhanced thermal stability and color consistency in demanding industrial applications.
Q2: Is RC14 suitable for use in high-temperature coating systems, such as coil coatings or ceramic glazes?
A: Yes — RC14 is specifically formulated to retain color integrity and dispersion stability at elevated processing temperatures, making it well-suited for coil coating lines, architectural metal finishes, and other thermally cured systems where organic pigments would degrade.
Q3: How does RC14 compare to conventional iron oxide reds in terms of tinting strength and weather resistance?
A: RC14 delivers significantly higher tinting strength and improved UV resistance compared to standard hematite-based reds, due to its optimized particle size distribution and surface treatment, resulting in more durable color retention in exterior exposure conditions.
Q4: Can RC14 be used in water-based industrial coatings without compromising stability or gloss?
A: Yes — RC14 is compatible with both water-based and solvent-based systems. Its proprietary inorganic surface modification ensures good wetting, reduced flocculation, and minimal impact on gloss or film clarity when properly dispersed using standard milling techniques.
Q5: What is the typical dosage range for RC14 in architectural and industrial coating formulations?
A: Dosage depends on the desired shade intensity and substrate opacity, but RC14 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight in finished coating systems — due to its high chroma and hiding power.
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