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Exceptional thermal stability up to 1200°C in oxidizing atmospheres.
Chemically inert and resistant to acids, alkalis, and solvents.
Non-toxic, heavy-metal-free formulation compliant with RoHS and REACH.
High color consistency and batch-to-batch reproducibility.
Optimized particle size distribution for uniform dispersion in high-temperature matrices.
Ceramic glazes and decorative tiles requiring sustained color integrity at firing temperatures.
High-temperature coatings for industrial furnaces, exhaust systems, and heat-resistant appliances.
Coloration of refractory mortars, castables, and fireproofing materials.
Pigmentation of glass enamels and vitreous coatings for architectural and automotive applications.
Functional coloring in aerospace composites exposed to elevated thermal cycling.
| Chemical Type | Mixed-metal oxide (spinel-based) |
| Product Form | Fine dry powder |
| Appearance | Free-flowing reddish-brown granular powder |
| Primary Applications | High-temperature ceramics, refractories, and specialty coatings |
| Key Features | Thermal stability, chemical inertness, non-volatility |
| Benefits | Long-term color retention, no blooming or migration under heat stress |
| Storage Conditions | Store in cool, dry, well-ventilated area away from moisture and strong oxidizers |
| Compliance | REACH registered; RoHS 2.0 compliant;不含铅、镉、汞、六价铬 |
Q1: What is the primary application domain for CATHAYTHERM RA14HR?
A: CATHAYTHERM RA14HR is specifically engineered for high-temperature applications in thermoset and thermoplastic polymers, including engineering plastics used in automotive under-hood components, electrical connectors, and industrial housings where thermal stability and color retention above 250°C are critical.
Q2: Is RA14HR compatible with polyphenylene sulfide (PPS) and polyetherimide (PEI)?
A: Yes — RA14HR demonstrates excellent compatibility and dispersion stability in high-performance engineering resins such as PPS, PEI, polyphthalamide (PPA), and liquid crystal polymers (LCP), maintaining hue integrity and minimizing plate-out during high-shear processing.
Q3: How does RA14HR perform under prolonged exposure to UV and thermal aging?
A: As an inorganic pigment based on a stabilized metal oxide spinel structure, RA14HR offers inherent resistance to both UV degradation and thermal oxidation, delivering superior long-term color stability compared to organic pigments in demanding outdoor or elevated-temperature service environments.
Q4: What is the recommended method for incorporating RA14HR into polymer compounds?
A: For optimal dispersion and performance, RA14HR is typically introduced via masterbatch compounding using twin-screw extrusion at standard processing temperatures for the host resin. Pre-drying is not required, but uniform feeding and adequate melt residence time are advised to ensure consistent color development.
Q5: Does RA14HR contain heavy metals restricted under RoHS or REACH?
A: RA14HR is formulated without lead, mercury, cadmium, or hexavalent chromium, and complies with current RoHS and REACH SVHC requirements for general industrial use; however, final regulatory compliance must be verified against the specific end-use application and regional legislation.
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E-mail: wangxingqiang@ericwchem.com
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