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High thermal stability up to 600 °C, suitable for high-temperature processing.
Excellent lightfastness and weather resistance, maintaining color integrity under UV exposure.
Non-toxic and heavy-metal-free formulation compliant with global regulatory standards (RoHS, REACH).
Superior dispersion performance in aqueous and solvent-based systems without requiring surface treatment.
Consistent batch-to-batch color strength and hue, ensuring reliable production repeatability.
Architectural coatings and exterior wall paints.
Plastic coloration for automotive interior components.
Ceramic glazes and vitreous enamel applications.
Construction materials including concrete admixtures and colored mortar.
Industrial powder coatings requiring long-term outdoor durability.
| Chemical Type | Complex iron oxide-based spinel (Fe–Co–Al oxide) |
| Product Form | Fine dry powder |
| Appearance | Deep blue to bluish-black granular powder |
| Primary Applications | Coatings, plastics, ceramics, construction materials |
| Key Features | Thermally stable, UV-resistant, non-volatile, chemically inert |
| Benefits | Low migration, minimal impact on polymer mechanical properties |
| Density | 4.8–5.2 g/cm³ |
| pH (10% aqueous slurry) | 6.5–7.5 |
Q1: What is the primary chemical composition of Cathay FERROTINT Blue F28A?
A: Cathay FERROTINT Blue F28A is a high-performance inorganic pigment based on modified iron oxide–cobalt spinel chemistry, engineered to deliver strong blue coloration with enhanced thermal and chemical stability.
Q2: Is this pigment suitable for use in high-temperature polymer processing?
A: Yes — F28A exhibits excellent thermal stability and is routinely used in engineering thermoplastics such as polyamide, polyester, and polyphenylene sulfide processed at temperatures up to 300 °C without significant hue shift or degradation.
Q3: How does F28A compare to organic blue pigments in terms of lightfastness and weather resistance?
A: As an inorganic spinel pigment, F28A offers significantly superior lightfastness, UV resistance, and atmospheric stability compared to most organic blues — making it preferred for outdoor applications and long-life color-critical components.
Q4: Can F28A be dispersed in aqueous systems for coatings or inks?
A: Yes — with appropriate surface treatment and dispersant selection, F28A can be effectively stabilized in water-based formulations, including architectural paints, industrial coatings, and certain ink systems.
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