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High thermal stability suitable for processing temperatures up to 800 °C.
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 agglomeration.
Consistent batch-to-batch color reproducibility and narrow particle size distribution.
Ceramic glazes and frits for architectural tiles and sanitaryware.
High-performance inorganic coatings for industrial metal finishing.
Colorants in refractory materials and heat-resistant concrete.
Pigmentation of glass enamels and low-melting-point glasses.
Functional pigments in automotive ceramic brake pads and friction composites.
| Chemical Type | Mixed Metal Oxide (Zinc Iron Chromite-based) |
| Product Form | Fine dry powder |
| Appearance | Yellow-brown free-flowing powder |
| Primary Applications | Ceramics, refractories, high-temp coatings, glass enamels |
| Key Features | Thermal stability, UV resistance, non-volatile, chemically inert |
| Benefits | Color retention at elevated temperatures, low reactivity with binders/matrices |
| pH (10% aqueous slurry) | 6.5–7.5 |
| Specific Surface Area (BET) | 8–12 m²/g |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Yellow YS21LV?
A: YS21LV is a high-performance inorganic yellow pigment based on modified lead chromate-free mixed metal oxides, engineered for excellent thermal stability and lightfastness in demanding industrial applications.
Q2: Is YS21LV suitable for use in coatings exposed to high-temperature curing processes?
A: Yes — YS21LV is specifically formulated for thermal stability and retains its color integrity during standard industrial baking cycles up to 250°C, making it well-suited for coil coating, powder coating, and automotive OEM applications.
Q3: How does YS21LV compare to organic yellow pigments in terms of weather resistance?
A: As an inorganic pigment, YS21LV offers significantly superior UV resistance, chalking resistance, and long-term color retention compared to most organic yellows—especially in exterior architectural and transportation coatings subjected to prolonged sunlight exposure.
Q4: Can YS21LV be used in water-based coating systems?
A: Yes — YS21LV is surface-treated for good dispersibility in both solvent-borne and water-based systems, including acrylic and polyurethane dispersions. Optimal performance requires proper dispersion using high-shear mixing or bead milling.
Q5: What is the typical dosage range for YS21LV in industrial coatings?
A: Dosage depends on formulation requirements and desired opacity, but YS21LV is generally effective at low concentrations — typically ranging from 0.1% to 2% by weight in finished coating systems.
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