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High thermal stability up to 800 °C, suitable for high-temperature ceramic and glaze applications.
Excellent lightfastness and weather resistance, ensuring long-term color retention under UV exposure.
Non-toxic and heavy-metal-free formulation compliant with global environmental regulations (RoHS, REACH).
Consistent particle size distribution for optimal dispersion and batch-to-batch color reproducibility.
Strong tinting strength and high opacity in both aqueous and solvent-based systems.
Ceramic glazes and underglaze decorations for tableware and sanitaryware.
Architectural façade coatings requiring durable, fade-resistant red hues.
High-performance industrial coatings for automotive and metal finishing.
Plastic coloration for engineering thermoplastics exposed to outdoor conditions.
Specialty inks for packaging and decorative printing on heat-stable substrates.
| Chemical Type | Mixed-metal oxide (Fe–Cr–Al spinel-based) |
| Product Form | Fine dry powder |
| Appearance | Brilliant reddish-brown powder |
| Primary Applications | Ceramics, architectural coatings, plastics, inks |
| Key Features | Thermal stability, UV resistance, chemical inertness |
| Benefits | Regulatory compliance, low migration, excellent dispersion |
| pH (10% aqueous slurry) | 6.5–7.5 |
| Moisture Content (wt%) | ≤0.5% |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RA19?
A: Cathay CATHAYCOAT Red RA19 is an inorganic iron-based red pigment, formulated as a modified hematite (α-Fe₂O₃) system with controlled particle morphology and surface treatment to enhance dispersion and stability in demanding applications.
Q2: Is this pigment suitable for high-temperature coating systems such as coil coatings or powder coatings?
A: Yes — RA19 exhibits excellent thermal stability and retains its color integrity at processing temperatures up to 350 °C, making it well-suited for coil coating, architectural powder coatings, and other high-bake industrial finishes.
Q3: How does RA19 perform in UV-exposed exterior applications?
A: As a fully inorganic oxide pigment, RA19 offers outstanding UV resistance and weatherfastness, with minimal fading or chalking under prolonged outdoor exposure — ideal for architectural facades, automotive refinishes, and industrial maintenance coatings.
Q4: Can RA19 be used in waterborne systems without compromising dispersion or gloss?
A: Yes — RA19 is surface-treated for compatibility with both solvent-borne and waterborne resin systems. With appropriate dispersants and milling, it achieves stable, low-viscosity dispersions and maintains high gloss and color strength in acrylic, epoxy, and polyurethane emulsions.
Q5: What is the typical dosage range when formulating with RA19?
A: Dosage depends on the required opacity, shade depth, and binder system, but RA19 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight in finished coatings — due to its high tinting strength and efficient light absorption.
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