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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.
Low heavy metal content, compliant with global environmental standards including RoHS and REACH.
Consistent particle size distribution ensuring uniform dispersion and optimal opacity in coatings and plastics.
Chemically inert in alkaline and acidic environments, enhancing compatibility with diverse resin systems.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance industrial coatings for automotive and appliance finishes.
Plastic coloration for outdoor construction profiles and engineering thermoplastics.
Architectural glass enamels requiring long-term color stability and heat resistance.
Specialty inks for metal packaging and heat-set printing processes.
| Chemical Type | Mixed-metal oxide (lead-free chromate-based) |
| Product Form | Fine dry powder |
| Appearance | Yellow to yellow-orange free-flowing powder |
| Primary Applications | Ceramics, industrial coatings, plastics, glass enamels |
| Key Features | Heat resistant, UV stable, chemically inert, low volatility |
| Benefits | Color consistency, low dust generation, easy wetting and dispersion |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
| Shelf Life | 36 months from date of manufacture under recommended storage |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Yellow YA21E?
A: Cathay CATHAYCOAT Yellow YA21E is a high-performance inorganic yellow pigment based on a modified iron oxide–zinc oxide composite system, engineered for enhanced thermal stability and chromatic consistency in demanding coating applications.
Q2: Is YA21E suitable for use in high-temperature curing systems, such as powder coatings or coil coatings?
A: Yes, YA21E is specifically formulated to withstand prolonged exposure to temperatures up to 250°C, making it well-suited for thermoset powder coatings, coil coating lines, and other high-bake industrial finishing processes.
Q3: How does YA21E compare to organic yellow pigments in terms of lightfastness and weather resistance?
A: As an inorganic pigment, YA21E offers significantly superior lightfastness, UV stability, and long-term color retention compared to most organic yellows—particularly under outdoor exposure or aggressive artificial weathering conditions.
Q4: Can YA21E be used in water-based architectural coatings without compromising dispersion stability or tinting strength?
A: Yes, YA21E is surface-treated to ensure good compatibility and stable dispersion in both water-based and solvent-based systems. Its optimized particle size distribution supports efficient wetting and consistent tinting performance across acrylic, PVA, and styrene-acrylic emulsion formulations.
Q5: What is the typical dosage range for YA21E in industrial coating formulations?
A: Dosage depends on the desired shade intensity and application requirements, but YA21E is generally used at low concentrations—typically ranging from 0.1% to 2% by weight of the total formulation—to achieve strong chromatic impact with excellent opacity and minimal effect on rheology.
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