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High thermal stability up to 800 °C, suitable for high-temperature coating and ceramic applications.
Excellent UV resistance and lightfastness, ensuring long-term color retention in outdoor exposure.
Low oil absorption (< 25 g/100 g), enabling high pigment loading and improved dispersion efficiency in binders.
Non-toxic and heavy-metal-free formulation compliant with REACH and RoHS regulatory requirements.
Consistent particle size distribution (D50 ≈ 0.8–1.2 µm) for smooth film formation and uniform opacity.
Architectural and industrial coatings requiring durable, weather-resistant coloration.
High-temperature ceramic glazes and kiln-fired decorative tiles.
Plastic colorants for engineering thermoplastics used in automotive under-hood components.
Fire-resistant intumescent coatings and passive fire protection systems.
| Chemical Type | Mixed Metal Oxide (Cobalt-Chromium-Spinel based) |
| Product Form | Fine dry powder |
| Appearance | Uniform bluish-green granular powder |
| Primary Applications | High-performance coatings, ceramics, plastics, fire protection materials |
| Key Features | Thermal stability, UV resistance, chemical inertness, non-volatility |
| Benefits | Color consistency, low migration, excellent dispersibility, regulatory compliance |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
| Shelf Life | 24 months from date of manufacture under recommended storage conditions |
Q1: What is the primary chemical composition of CATHAYCOAT® PR225?
A: CATHAYCOAT® PR225 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 PR225 suitable for use in high-temperature curing systems, such as powder coatings or coil coatings?
A: Yes — PR225 is specifically formulated to retain color integrity and dispersion stability at elevated processing temperatures up to 250 °C, making it well-suited for thermoset powder coatings, coil coatings, and other high-bake industrial finishes.
Q3: How does PR225 compare to conventional red iron oxides in terms of weathering performance?
A: PR225 offers significantly improved resistance to chalking, fading, and gloss loss under prolonged UV exposure and cyclic humidity, due to its dense crystalline structure and surface stabilization—outperforming standard α-Fe₂O₃ pigments in exterior architectural and automotive OEM applications.
Q4: Can PR225 be used in waterborne industrial coatings without compromising dispersion stability or film appearance?
A: Yes — PR225 is compatible with both solvent-based and waterborne systems, including acrylic, epoxy, and polyurethane dispersions. Its optimized particle morphology and surface treatment support stable aqueous dispersions and contribute to uniform film formation with minimal settling.
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E-mail: wangxingqiang@ericwchem.com
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