High thermal stability up to 600°C, suitable for high-temperature processing environments.
Excellent lightfastness and weather resistance, maintaining color integrity under prolonged UV exposure.
Non-toxic and heavy-metal-free formulation, compliant with global regulatory standards including EN 71-3 and RoHS.
Superior dispersion performance in aqueous and solvent-based systems without requiring specialized dispersants.
Consistent batch-to-batch color reproducibility ensured by stringent in-process quality control.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance architectural coatings exposed to harsh outdoor conditions.
Plastic coloration for automotive interior components requiring long-term thermal and UV stability.
Specialty concrete and terrazzo pigmentation for durable exterior paving and façade elements.
Fire-resistant intumescent coatings where pigment thermal integrity is critical.
| Chemical Type | Complex mixed-metal oxide (cobalt-aluminum spinel based) |
| Product Form | Fine dry powder |
| Appearance | Deep blue granular powder with uniform particle distribution |
| Primary Applications | Ceramics, architectural coatings, engineering plastics, concrete, fire-retardant systems |
| Key Features | Thermal stability, UV resistance, chemical inertness, non-volatility |
| Benefits | Color retention at high processing temperatures, low migration risk, minimal impact on matrix mechanical properties |
| pH (5% aqueous slurry) | 6.5 – 7.5 |
| LOI (Loss on Ignition, 1000°C) | ≤ 1.2% |
Q1: What is the primary chemical composition of Cathay FERROTINT Blue F28DB?
A: Cathay FERROTINT Blue F28DB is a high-performance inorganic blue pigment based on modified iron oxide–cobalt spinel chemistry, engineered for enhanced chroma and thermal stability without reliance on heavy-metal-containing alternatives.
Q2: Is this pigment suitable for use in heat-sensitive polymer systems such as polyolefins or PVC?
A: Yes — F28DB exhibits excellent thermal stability up to approximately 900 °C in air and maintains color integrity during standard extrusion and injection molding processes for polyolefins, PVC, and engineering thermoplastics.
Q3: How does F28DB compare to organic blue pigments in terms of weather resistance and UV stability?
A: As an inorganic spinel-based pigment, F28DB delivers significantly superior lightfastness, chalk resistance, and long-term UV stability compared to most organic blues—making it preferred for exterior applications including architectural coatings and durable plastics.
Q4: Can F28DB be used in water-based coating systems?
A: Yes — with appropriate surface treatment and dispersion protocols, F28DB is compatible with aqueous acrylic, epoxy, and polyurethane dispersions, offering good rheological behavior and minimal impact on gloss or film integrity.
Q5: What is the typical dosage range for achieving full opacity and optimal color strength?
A: Dosage depends on substrate, desired shade depth, and application method, but F28DB is generally effective at low concentrations — typically ranging from 0.1% to 2% by weight in most polymer and coating formulations.
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