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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.
Low soluble salt content (< 0.1%), ensuring compliance with stringent environmental and safety standards.
Consistent particle size distribution for uniform dispersion and optimal opacity in coating systems.
Non-toxic, heavy-metal-free formulation compliant with EN 71-3 and RoHS directives.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance architectural coatings requiring long-term color retention.
Industrial powder coatings for metal substrates exposed to outdoor conditions.
Fire-resistant intumescent paints and passive fire protection systems.
Plastic coloration for engineering thermoplastics used in automotive interior components.
| Chemical Type | Calcium Iron Molybdate-based complex inorganic pigment |
| Product Form | Fine dry powder |
| Appearance | Brilliant red-brown free-flowing powder |
| Primary Applications | Ceramics, architectural coatings, powder coatings, plastics, fire protection systems |
| Key Features | Thermal stability, UV resistance, low solubility, heavy-metal-free |
| Benefits | Color consistency, regulatory compliance, process compatibility with standard dispersion equipment |
| pH (5% aqueous slurry) | 6.5 – 7.5 |
| Volatile Matter (105 °C, 2 hrs) | ≤ 0.5 wt% |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RC12B?
A: Cathay CATHAYCOAT Red RC12B is a high-performance inorganic red pigment based on a stabilized iron oxide–chromium oxide composite system, engineered for thermal and chemical robustness in demanding coating applications.
Q2: Is RC12B suitable for use in high-temperature curing systems, such as powder coatings or coil coatings?
A: Yes — RC12B exhibits excellent thermal stability and retains its color integrity during typical powder coating cure cycles (up to 200 °C) and continuous coil coating processes, making it well-suited for industrial metal finishing applications.
Q3: How does RC12B perform in terms of UV resistance and weathering stability?
A: As an inorganic pigment, RC12B offers inherently strong resistance to UV degradation and long-term outdoor exposure, providing consistent color retention and minimal chalking in properly formulated exterior architectural and industrial coatings.
Q4: Can RC12B be used in water-based coating systems without compromising dispersion stability or tinting strength?
A: Yes — RC12B is surface-treated for compatibility with both solvent-borne and aqueous systems. When properly dispersed using standard milling and stabilization techniques, it delivers uniform color development and good rheological behavior in acrylic, epoxy, and polyurethane dispersions.
Q5: What safety and handling precautions should be observed when processing RC12B?
A: RC12B is classified as a low-hazard inorganic pigment; however, standard industrial hygiene practices apply — including dust control during handling, use of appropriate PPE (e.g., N95 respirator, gloves), and adherence to local occupational exposure guidelines for fine particulate matter.
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