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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.
Non-toxic, heavy-metal-free formulation compliant with global regulatory standards including EN 71-3 and RoHS.
Consistent particle size distribution ensuring uniform dispersion and optimal color development in matrix systems.
Strong tinting strength and high opacity, enabling efficient coverage with low dosage levels.
Ceramic glazes and frits for tableware, sanitaryware, and architectural tiles.
Coloring agent in vitreous enamel coatings for domestic appliances and industrial metal substrates.
Pigmentation of refractory materials including firebricks and kiln furniture.
Stabilized yellow pigment in high-performance concrete and cementitious decorative products.
Functional colorant in polymer systems requiring heat resistance, such as polyimide films and engineering thermoplastics.
| Chemical Type | Complex iron-based inorganic oxide (Fe–Zn–Cr spinel structure) |
| Product Form | Fine dry powder |
| Appearance | Yellow to yellowish-brown free-flowing powder |
| Primary Applications | Ceramics, enamels, refractories, cementitious materials |
| Key Features | Heat stable, non-toxic, UV resistant, chemically inert in alkaline environments |
| Benefits | Low migration risk, excellent batch-to-batch consistency, minimal impact on substrate mechanical properties |
| pH (10% aqueous slurry) | 6.5 – 8.0 |
| Moisture Content (wt%) | ≤ 0.5% |
Q1: What is the primary chemical composition of Cathay FERROTINT Yellow F5015?
A: Cathay FERROTINT Yellow F5015 is an inorganic iron oxide-based yellow pigment, primarily composed of hydrated iron(III) oxide (Fe₂O₃·nH₂O), engineered for high thermal stability and consistent chromatic performance in demanding industrial applications.
Q2: Is this pigment suitable for use in food-contact plastics or coatings?
A: While F5015 meets general industrial safety requirements for inorganic pigments, it is not pre-certified for direct food-contact applications. Formulators must conduct full regulatory compliance verification—including migration testing and end-use assessment—according to applicable regional regulations before use in food-contact materials.
Q3: How does F5015 perform under high-temperature processing conditions?
A: As a thermally stable iron oxide pigment, F5015 retains its color integrity and structural stability during standard polymer processing operations—including extrusion and injection molding at temperatures up to approximately 300°C—without significant darkening or decomposition.
Q4: What types of resin systems is F5015 commonly dispersed in?
A: F5015 demonstrates good compatibility and dispersion stability in a wide range of thermoplastics (e.g., PP, PE, PS) and thermosets (e.g., epoxy, polyester), as well as in water-based and solvent-based industrial coatings and construction mortars.
Q5: What is the typical dosage range when using F5015 in plastic masterbatches?
A: Dosage depends on the desired shade intensity and base resin transparency, but F5015 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—in masterbatch formulations to achieve optimal color development and processability.
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