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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 and heavy-metal-free formulation compliant with global regulatory standards including EN 71-3 and RoHS.
Strong tinting strength and consistent batch-to-batch color reproducibility.
Good dispersibility in aqueous and solvent-based systems without requiring specialized surfactants.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance architectural coatings and industrial maintenance paints.
Plastic coloration for automotive interior components and durable consumer goods.
Colored glass formulations requiring heat-stable yellow hues.
Fire-resistant building materials and intumescent coatings.
| Chemical Type | Complex metal oxide (Zinc Iron Chromate variant) |
| Product Form | Fine dry powder |
| Appearance | Bright yellow granular powder |
| Primary Applications | Ceramics, coatings, plastics, glass |
| Key Features | Heat stable, lightfast, non-toxic, low water solubility |
| Particle Size (D50) | 0.8–1.2 μm |
| Bulk Density | 2.4–2.6 g/cm³ |
| pH (10% aqueous slurry) | 6.5–7.5 |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Yellow YS23?
A: Cathay CATHAYCOAT Yellow YS23 is a high-performance inorganic yellow pigment based on a modified complex metal oxide system, engineered for enhanced thermal stability and chromatic purity. Its exact composition is proprietary, but it contains no heavy metals such as lead, cadmium, or hexavalent chromium.
Q2: Is YS23 suitable for high-temperature coating applications, such as coil coatings or powder coatings?
A: Yes — YS23 is specifically formulated for excellent thermal stability and retains its color integrity during curing processes up to approximately 250°C, making it well-suited for coil coatings, powder coatings, and other thermally demanding industrial finishes.
Q3: How does YS23 perform in terms of UV resistance and weathering stability?
A: As an inorganic pigment, YS23 exhibits inherently strong resistance to UV degradation and long-term outdoor exposure. It demonstrates minimal fading or chalking under accelerated weathering tests and is widely used in exterior architectural and industrial coatings requiring durable color retention.
Q4: Can YS23 be dispersed effectively in both water-based and solvent-based systems?
A: Yes — YS23 is surface-treated to ensure good wettability and dispersion stability across a broad range of media, including aqueous acrylic dispersions, alkyd resins, polyurethanes, and epoxy systems. Optimal dispersion typically requires standard high-shear mixing or bead milling.
Q5: What are typical dosage recommendations when using YS23 in industrial coatings?
A: Dosage depends on formulation requirements and desired opacity or tint strength, but YS23 is generally used at low concentrations — typically ranging from 0.1% to 2% by weight in the final coating — due to its high coloring power and efficient coverage.
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