High thermal stability up to 800°C, suitable for high-temperature ceramic and enamel applications.
Excellent chemical resistance against acids, alkalis, and solvents in demanding industrial environments.
Consistent batch-to-batch color reproducibility with low chromatic variation (ΔE < 1.5).
Non-toxic formulation compliant with EU REACH and RoHS directives for safe handling and end-use.
Optimized particle size distribution for superior dispersion and opacity in inorganic matrices.
Ceramic glazes and underglaze decorations for tableware and architectural tiles.
High-performance enamels for domestic appliances and industrial metal coatings.
Colorants in refractory materials including furnace linings and kiln furniture.
Pigmentation of inorganic-based construction materials such as concrete pavers and façade panels.
Stable red hue in glass coloration systems requiring oxidation stability.
| Chemical Type | Calcium-strontium chromate-based inorganic pigment |
| Product Form | Free-flowing fine powder |
| Appearance | Brilliant red powder with uniform granulation |
| Primary Applications | Ceramics, enamels, refractories, architectural concrete, specialty glass |
| Key Features | Thermal stability, acid/alkali resistance, non-volatility, lightfastness |
| Benefits | No heavy metal leaching, consistent hue across firing cycles, low dosage efficiency |
| Storage Conditions | Store in dry, cool, well-ventilated area away from moisture and direct sunlight |
| Shelf Life | 24 months from date of manufacture under recommended storage conditions |
Q1: What is the primary chemical composition of Cathay CATHAYCOAT Red RC16T?
A: Cathay CATHAYCOAT Red RC16T is an iron oxide–based inorganic pigment, engineered for high thermal stability and chemical inertness. Its red hue derives from a controlled crystalline phase of hematite (α-Fe₂O₃), optimized for consistent color performance in demanding industrial applications.
Q2: Is RC16T suitable for use in high-temperature coating systems such as coil coatings or powder coatings?
A: Yes — RC16T is specifically formulated for excellent thermal stability, retaining color integrity and dispersion quality during curing processes exceeding 200 °C. It is widely used in coil coatings, architectural powder coatings, and other baked enamel systems where pigment decomposition must be avoided.
Q3: How does RC16T compare to organic red pigments in terms of weather resistance and UV stability?
A: As an inorganic pigment, RC16T offers significantly superior resistance to UV degradation, chalking, and fading compared to most organic reds. It demonstrates long-term color retention in exterior applications, including façade coatings and industrial maintenance paints exposed to harsh sunlight and moisture.
Q4: What is the recommended dosage range for optimal color strength and dispersion efficiency?
A: Dosage depends on the specific formulation, desired opacity, and application method, but RC16T is typically used at low concentrations due to its high tinting strength and efficient particle dispersion. In most solvent- and water-based industrial coatings, effective loading generally ranges from 0.1% to 2% by weight of the total formulation.
Q5: Can RC16T be safely incorporated into food-contact or toy-safe coatings?
A: RC16T is not certified for direct food-contact applications under global food safety regulations. However, it may be considered for indirect contact or non-ingestible applications (e.g., exterior surfaces of appliances or children’s furniture) when formulated into compliant coating systems — final regulatory compliance must be verified by the formulator per applicable regional requirements.
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