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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 international regulatory standards including EN 71-3 and RoHS.
Superior chemical inertness—resistant to acids, alkalis, and solvents commonly used in industrial coatings.
Consistent particle size distribution ensuring smooth dispersion and uniform color development in matrix systems.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance architectural and industrial coatings requiring long-term outdoor durability.
Plastic coloration for automotive interior components and exterior trim parts.
Colored glass formulations, including borosilicate and soda-lime glass batches.
Fire-resistant intumescent coatings and flame-retardant polymer composites.
| Chemical Type | Calcium Molybdate-based Inorganic Pigment |
| Product Form | Free-flowing fine powder |
| Appearance | Brilliant red-orange powder with metallic luster |
| Primary Applications | Ceramics, coatings, plastics, glass, and specialty inks |
| Key Features | Thermal stability, non-volatility, low oil absorption |
| Benefits | Color consistency, batch-to-batch reproducibility, low migration risk |
| Storage Conditions | Store in cool, dry, well-ventilated area; avoid moisture and direct sunlight |
| Regulatory Compliance | REACH registered; meets ISO 9001 quality management requirements |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RA13A?
A: Cathay CATHAYCOAT Red RA13A is a high-performance inorganic red pigment based on a stabilized iron oxide–zinc oxide composite system, engineered for enhanced thermal and chemical stability in demanding coating applications.
Q2: Is RA13A suitable for use in high-temperature curing coatings?
A: Yes — RA13A exhibits excellent thermal stability and retains its color integrity and dispersion performance under typical industrial baking conditions up to 250°C, making it well-suited for coil coatings, automotive refinishes, and powder coating systems.
Q3: How does RA13A compare to conventional iron oxide red pigments in terms of tinting strength and opacity?
A: RA13A delivers significantly higher tinting strength and improved hiding power compared to standard hematite-based reds, due to its optimized particle size distribution and surface treatment, allowing for more efficient color development at lower dosage levels.
Q4: Can RA13A be used in waterborne industrial coatings without compromising dispersion stability?
A: Yes — RA13A is specifically surface-modified for compatibility with both solvent-borne and waterborne systems. It demonstrates good wetting and long-term dispersion stability in acrylic, epoxy, and polyurethane dispersions when processed with appropriate dispersants and shear conditions.
Q5: What safety and regulatory considerations apply to handling and formulating with RA13A?
A: As an inorganic pigment, RA13A contains no heavy metals of concern (e.g., lead, cadmium, or mercury) and complies with major global voluntary standards for industrial pigments. Standard occupational hygiene practices — including dust control during dry handling and use of appropriate PPE — are recommended per general industrial pigment guidelines.
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E-mail: wangxingqiang@ericwchem.com
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