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Exceptional lightfastness and weather resistance for long-term color stability in demanding outdoor applications.
High tinctorial strength with excellent dispersion properties in aqueous and solvent-based systems.
Non-toxic, sulfate-free formulation compliant with global regulatory standards including EN 71-3 and FDA guidelines for indirect food contact.
Thermally stable up to 250 °C, retaining vivid blue hue during high-temperature processing (e.g., polymer compounding).
Low oil absorption (< 35 g/100 g) enabling high pigment loading without compromising rheology or film integrity.
Architectural coatings and exterior wall paints requiring durable, fade-resistant blue tones.
Plastic coloration for polyolefins, ABS, and PVC in automotive interior trim and consumer goods.
Printing inks for flexible packaging and premium labels where clarity and chroma are critical.
Masterbatch production for fibers, films, and injection-molded components.
Artists’ acrylics and water-based decorative paints demanding high purity and batch-to-batch consistency.
| Chemical Type | Sodium aluminosilicate sulfur complex (Ultramarine Blue) |
| Product Form | Fine free-flowing powder |
| Appearance | Intense violet-blue powder with uniform particle size distribution |
| Primary Applications | Coatings, plastics, inks, masterbatches, artists’ materials |
| Key Features | Lightfastness Grade 7–8 (ISO 105-B02), non-bleeding, pH-stable (pH 4.5–9.5) |
| Benefits | Low dust generation, easy wetting, compatibility with common dispersants and resins |
| Heavy Metals Content | Complies with EU Directive 2009/48/EC (Toy Safety): Pb < 5 ppm, Cd < 1 ppm, Cr < 10 ppm, Hg < 0.5 ppm |
| Particle Size (D50) | 8–12 µm (laser diffraction, dry dispersion) |
Q1: What is the primary application advantage of Nubiperf RA-40 compared to standard ultramarine pigments?
A: Nubiperf RA-40 is specially engineered for enhanced acid resistance and thermal stability, making it suitable for demanding applications such as acid-cured coatings, powder coatings, and polymer systems processed at elevated temperatures where conventional ultramarines may degrade or discolor.
Q2: Is Nubiperf RA-40 compatible with PVC and other common thermoplastics?
A: Yes — Nubiperf RA-40 demonstrates excellent compatibility with rigid and flexible PVC, as well as polyolefins and ABS. Its optimized particle surface treatment supports uniform dispersion and minimizes plate-out during extrusion or calendering processes.
Q3: How does Nubiperf RA-40 perform under UV exposure in outdoor applications?
A: While ultramarine pigments are not inherently UV-stable, Nubiperf RA-40 incorporates proprietary stabilization that improves retention of hue and brightness in short-to-medium term outdoor exposure — particularly when used in opaque or pigmented systems with additional UV absorbers or HALS stabilizers.
Q4: What is the recommended method for dispersing Nubiperf RA-40 in liquid systems?
A: For optimal performance, pre-wet the pigment with a portion of the vehicle or dispersant, then use high-shear mixing or bead milling. Avoid prolonged over-milling, which may affect the delicate crystal structure and reduce color strength.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
