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High-temperature stability up to 1200 °C in oxidizing atmospheres.
Excellent chemical inertness against acids, alkalis, and molten salts.
Non-toxic, heavy-metal-free composition compliant with global REACH and RoHS directives.
Superior UV resistance and long-term color retention under extreme thermal cycling.
Fine particle size distribution ensuring uniform dispersion and high hiding power.
Ceramic glazes and decorative tiles requiring vibrant, heat-stable coloration.
High-performance refractory coatings for furnace linings and kiln furniture.
Thermal barrier coatings (TBCs) in aerospace and energy-generation components.
Colorants for technical porcelain, spark plug insulators, and electronic substrates.
Stabilized pigments in glass enamels and vitreous coatings for architectural metal.
| Chemical Type | Mixed-metal oxide (spinel-based) |
| Product Form | Free-flowing fine powder |
| Appearance | Uniform reddish-brown granular powder |
| Primary Applications | High-temperature ceramics, refractories, and specialty coatings |
| Key Features | Thermal stability, non-volatility, and oxidation resistance |
| Benefits | Consistent batch-to-batch performance and low sintering reactivity |
| Storage Conditions | Store in dry, cool, well-ventilated area; avoid moisture absorption |
| Regulatory Compliance | REACH registered, RoHS 2.0 compliant, no SVHC substances |
Q1: What is the primary application field for CATHAYTHERM YA23HR?
A: CATHAYTHERM YA23HR is specifically engineered for high-temperature applications in thermoplastic and thermoset polymer systems, including engineering plastics used in automotive under-hood components, electrical connectors, and industrial housings where thermal stability and color retention above 280°C are required.
Q2: Is YA23HR compatible with polyphenylene sulfide (PPS) and polyetherimide (PEI)?
A: Yes — YA23HR demonstrates excellent compatibility and dispersion stability in high-performance engineering resins such as PPS, PEI, polyphthalamide (PPA), and liquid crystal polymers (LCP), with minimal risk of blooming or color shift during extended thermal processing.
Q3: How does YA23HR perform under prolonged exposure to UV radiation and weathering?
A: As an inorganic pigment based on mixed metal oxides, YA23HR offers inherently high UV resistance and weathering stability. It maintains consistent hue and chroma in outdoor applications without requiring additional UV stabilizers in most standard formulations.
Q4: What is the recommended method for incorporating YA23HR into polymer melts?
A: For optimal dispersion, YA23HR is typically introduced via masterbatch preparation using twin-screw extrusion at moderate shear and controlled residence time. Pre-drying is not required, but handling in low-humidity environments is advised to preserve flowability and avoid agglomeration.
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E-mail: wangxingqiang@ericwchem.com
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