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Exceptional thermal stability up to 250 °C, enabling use in high-temperature coating and plastic processing.
Outstanding lightfastness and weather resistance, maintaining color integrity under prolonged UV exposure.
High chroma and clean blue-violet hue with excellent tinting strength and dispersion consistency.
Non-toxic, sulfate-free formulation compliant with major global regulatory frameworks (e.g., REACH, RoHS).
Optimized particle size distribution for smooth, defect-free film formation in demanding industrial coatings.
Automotive OEM and refinish coatings requiring heat-resistant blue pigments.
Engineering thermoplastics including polyamide (PA), polybutylene terephthalate (PBT), and PPS.
High-performance coil coatings for architectural and appliance metal substrates.
Industrial powder coatings subjected to curing temperatures above 200 °C.
Specialty inks for heat-transfer printing and ceramic decal applications.
| Chemical Type | Synthetic ultramarine blue (sodium aluminosilicate polysulfide) |
| Product Form | Fine, free-flowing dry powder |
| Appearance | Intense violet-blue granular powder |
| Primary Applications | High-temperature coatings, engineering plastics, powder coatings, specialty inks |
| Key Features | Thermal stability, lightfastness, dispersion stability, non-toxicity |
| Heat Resistance | Stable up to 250 °C (short-term exposure) |
| pH Stability | Stable in neutral to mildly alkaline media (pH 6–9) |
| Heavy Metals Content | Compliant with EN 71-3 and ASTM F963 (≤10 ppm Pb, Cd, Hg, Cr⁶⁺) |
Q1: What makes NUBICOAT HTS different from standard ultramarine pigments?
A: NUBICOAT HTS is specially engineered for high-temperature stability in demanding coating and plastic applications. It features enhanced thermal resistance compared to conventional ultramarines, allowing it to retain its intense blue hue during processing steps such as extrusion, injection molding, or baking cycles where temperatures exceed typical limits for standard grades.
Q2: Is NUBICOAT HTS suitable for use in food-contact coatings?
A: NUBICOAT HTS is designed for industrial and decorative coating systems, not for direct food-contact applications. Its formulation and regulatory status are aligned with general-purpose industrial coatings; customers requiring food-contact compliance must consult local regulatory authorities and conduct appropriate migration testing under applicable frameworks.
Q3: How does NUBICOAT HTS perform in acidic environments?
A: Like all ultramarine pigments, NUBICOAT HTS is sensitive to low-pH conditions and may undergo color degradation or fading when exposed to strong acids. It is recommended for use in neutral to alkaline systems; formulators should avoid combining it with acidic resins, catalysts, or additives without prior compatibility testing.
Q4: What dispersion methods are recommended for optimal performance in solvent-based coatings?
A: For solvent-based systems, high-shear mixing with suitable dispersing agents is recommended to achieve full deagglomeration and stable pigment distribution. Pre-wetting with compatible solvents followed by bead milling or rotor-stator homogenization typically yields the best color strength and gloss retention.
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