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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.
Superior chemical inertness—resistant to acids, alkalis, and solvents in demanding coating systems.
Consistent particle size distribution ensuring uniform dispersion and optimal opacity in formulations.
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 environments.
Fire-resistant intumescent paints and passive fire protection systems.
Plastic colorants for engineering thermoplastics used in automotive interior components.
| Chemical Type | Complex iron-chromium spinel (Fe,Cr)₂O₃-based inorganic pigment |
| Product Form | Fine dry powder |
| Appearance | Deep brick-red to maroon free-flowing powder |
| Primary Applications | Ceramics, architectural coatings, powder coatings, fire-retardant paints, engineering plastics |
| Key Features | Heat stable, UV resistant, chemically inert, non-hazardous |
| Benefits | Low migration, excellent dispersibility, consistent batch-to-batch color performance |
| Storage Conditions | Store in cool, dry, well-ventilated area away from moisture and direct sunlight |
| Regulatory Compliance | REACH registered; RoHS compliant; non-ELV restricted substances |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RA13?
A: Cathay CATHAYCOAT Red RA13 is an iron oxide-based inorganic pigment, formulated to deliver high thermal stability and excellent lightfastness. Its composition is optimized for consistent red hue intensity and minimal chromatic shift under processing conditions.
Q2: Is this pigment suitable for high-temperature polymer processing, such as polypropylene or engineering thermoplastics?
A: Yes — RA13 is specifically engineered for thermal stability in melt-processing applications. It maintains color integrity and dispersion performance at typical extrusion and injection molding temperatures for polyolefins and other common thermoplastics.
Q3: How does RA13 compare to organic red pigments in terms of weather resistance and UV stability?
A: As an inorganic pigment, RA13 offers significantly superior resistance to UV degradation, heat, and atmospheric exposure compared to most organic reds. It is widely selected for outdoor applications where long-term color retention is critical.
Q4: Can RA13 be used in water-based coating systems without compromising dispersion stability?
A: Yes — RA13 is surface-treated to enhance compatibility with both solvent-based and aqueous media. When properly dispersed using standard milling or let-down techniques, it delivers stable, uniform coloration in architectural and industrial waterborne coatings.
Q5: What is the typical dosage range when incorporating RA13 into plastic masterbatches?
A: Dosage depends on the required opacity, shade depth, and base polymer. RA13 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight — to achieve strong red tones while maintaining processability and mechanical properties.
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