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Exceptional lightfastness and weather resistance for long-term color stability.
High tinctorial strength with intense, clean blue-violet hue.
Excellent dispersibility in aqueous and solvent-based systems.
Non-toxic, sulfate-free formulation compliant with major global regulatory frameworks.
Thermally stable up to 250 °C, suitable for medium-heat processing conditions.
Architectural and industrial coatings requiring durable blue shades.
Plastic coloration for polyolefins, ABS, and PVC (non-heat-sensitive grades).
Printing inks for packaging and decorative applications.
Artist-grade acrylics, gouache, and watercolor formulations.
Construction materials including colored concrete, stucco, and dry-mix mortars.
| Chemical Type | Sodium aluminum silicate sulfide (synthetic ultramarine) |
| Product Form | Fine free-flowing powder |
| Appearance | Deep violet-blue granular powder |
| Primary Applications | Coatings, plastics, inks, artists’ colors, construction materials |
| Key Features | Lightfastness ≥7 (ISO 105-B02), non-bleeding, pH-stable (5–9) |
| Benefits | Low dust generation, consistent batch-to-batch performance, REACH-compliant |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
Q1: What is the primary chemical composition and structural basis of Nubiola V-10?
A: Nubiola V-10 is a synthetic ultramarine pigment based on a sodium aluminosilicate framework with polysulfide chromophores. Its intense blue hue arises from sulfur radical anions (S₃⁻) trapped within the β-cage structure of lapis lazuli-type aluminosilicate.
Q2: Is Nubiola V-10 suitable for use in food-contact plastics or packaging applications?
A: Nubiola V-10 is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for non-food-contact industrial uses such as general-purpose plastics, coatings, and inks where regulatory compliance for migration is not required.
Q3: How does Nubiola V-10 perform under acidic conditions?
A: Like most ultramarine pigments, Nubiola V-10 is sensitive to low pH environments and may undergo discoloration or degradation when exposed to strong acids. It is recommended for neutral to alkaline systems and should be avoided in formulations containing acidic monomers, catalysts, or additives.
Q4: What is the typical dosage range for achieving optimal color strength in polyolefin masterbatches?
A: Dosage depends on formulation requirements and desired shade intensity, but Nubiola V-10 is typically used at low concentrations in polyolefin masterbatches—generally ranging from 0.1% to 2% by weight—to achieve strong, clean blue tones without compromising melt stability.
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