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High thermal stability up to 900 °C, suitable for high-temperature ceramic and enamel applications.
Excellent lightfastness and weather resistance, ensuring long-term color retention under UV exposure.
Chemically inert and non-reactive with common binders, resins, and glazes across diverse formulation systems.
Consistent particle size distribution for uniform dispersion and optimal opacity in pigment concentrates.
Low heavy metal content compliant with major global regulatory frameworks including EU REACH and RoHS.
Ceramic glazes and underglaze decorations for tableware and sanitaryware.
High-performance architectural and industrial coatings requiring durable red hues.
Coloration of vitreous enamels for appliances, cookware, and metal substrates.
Specialty plastics processing where heat stability and migration resistance are critical.
Artistic and technical ceramics requiring reproducible, intense brick-red tones.
| Chemical Type | Complex iron-chromium oxide spinel |
| Product Form | Fine dry powder |
| Appearance | Free-flowing reddish-brown powder |
| Primary Applications | Ceramics, enamels, high-temp coatings, specialty plastics |
| Key Features | Thermal stability, UV resistance, chemical inertness, low solubility |
| Benefits | Color consistency, minimal batch variation, compatibility with acidic and alkaline systems |
| pH (5% aqueous slurry) | 6.5–7.5 |
| Moisture Content (max.) | 0.5% w/w |
Q1: What is the primary chemical composition of CATHAYRED RA12YD?
A: CATHAYRED RA12YD is a high-performance inorganic red pigment based on a modified iron oxide–chromium oxide solid solution system, engineered for enhanced thermal stability and color consistency in demanding processing environments.
Q2: Is CATHAYRED RA12YD suitable for use in polyolefin compounds processed at high temperatures?
A: Yes — this pigment is specifically formulated to withstand extrusion and molding temperatures commonly encountered in polypropylene and polyethylene applications, with proven resistance to thermal degradation up to 300 °C under standard processing conditions.
Q3: How does CATHAYRED RA12YD perform in terms of UV resistance and weathering stability?
A: As an inorganic pigment, it exhibits excellent inherent UV stability and long-term resistance to fading or chalking, making it well-suited for outdoor applications where prolonged exposure to sunlight and environmental stressors is expected.
Q4: Can CATHAYRED RA12YD be used in food-contact plastics?
A: While the base chemistry complies with general inorganic pigment safety principles, formal regulatory clearance for food-contact applications depends on final formulation, processing conditions, and regional compliance requirements. Customers are advised to conduct full regulatory validation for their specific use case.
Q5: What is the typical dosage range for optimal coloration in thermoplastic systems?
A: Dosage generally ranges from 0.1% to 2% by weight depending on the desired shade intensity, polymer matrix, and processing method — typically used at low concentrations due to its high tinting strength and efficient dispersion characteristics.
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E-mail: wangxingqiang@ericwchem.com
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