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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.
Low oil absorption and high dispersibility in aqueous and solvent-based systems.
Non-toxic, heavy-metal-free formulation compliant with global regulatory standards (RoHS, REACH).
Consistent particle size distribution ensuring uniform color strength and minimal batch variation.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance architectural and industrial coatings requiring long-term outdoor durability.
Enamels for metal substrates including cookware, appliances, and signage.
Plastic coloration for engineering thermoplastics used in automotive interior components.
Specialty inks for heat-resistant packaging and decorative printing on glass or metal.
| Chemical Type | Mixed-Metal Oxide (Cobalt-Chromium-Spinel based) |
| Product Form | Fine dry powder |
| Appearance | Uniform dark greenish-black granular powder |
| Primary Applications | Ceramics, enamels, high-temp coatings, engineering plastics |
| Key Features | Thermal stability, UV resistance, low volatility, non-fading |
| Benefits | Reduced rework, extended service life, regulatory compliance, process efficiency |
| pH (10% aqueous slurry) | 6.5 – 7.5 |
| Volatile Matter (105 °C, 2 hrs) | ≤ 0.5 wt% |
Q1: What is the primary chemical composition of CATHAYCOAT® PR222?
A: CATHAYCOAT® PR222 is a high-performance inorganic pigment based on a stabilized iron oxide–chromium oxide composite system, engineered for exceptional thermal stability and UV resistance in demanding coating applications.
Q2: Is PR222 suitable for use in high-temperature curing systems, such as coil coatings or powder coatings?
A: Yes — PR222 is specifically formulated to retain color integrity and dispersion stability at elevated processing temperatures, making it well-suited for coil coating lines and thermosetting powder coatings where peak metal temperatures exceed 200 °C.
Q3: How does PR222 compare to conventional red iron oxides in terms of weathering performance?
A: PR222 offers significantly improved resistance to chalking, fading, and gloss loss under accelerated and natural weathering conditions due to its denser crystal structure and reduced surface reactivity compared to standard α-Fe₂O₃ pigments.
Q4: Can PR222 be used in waterborne industrial coatings without compromising dispersion stability or tinting strength?
A: Yes — PR222 is surface-treated for compatibility with both solvent-borne and waterborne resin systems. It demonstrates excellent wetting, low viscosity impact, and consistent tinting strength in acrylic, epoxy, and polyurethane dispersions.
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E-mail: wangxingqiang@ericwchem.com
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