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High chroma, intense blue shade with excellent lightfastness and weather resistance.
Optimized particle size distribution for superior dispersion in aqueous and solvent-based systems.
Low sulfate content ensures enhanced chemical stability in alkaline environments.
Non-toxic, heavy-metal-free formulation compliant with global regulatory standards including EN 71-3 and ASTM F963.
Thermally stable up to 300°C, retaining color integrity during high-temperature processing.
Architectural coatings and exterior wall paints requiring long-term color retention.
Plastic coloration for polyolefins, PVC, and engineering thermoplastics.
Printing inks for packaging and decorative applications on paper and film substrates.
Artist-grade acrylics, gouache, and watercolor formulations.
Concrete and cementitious products including colored paving stones and façade elements.
| Chemical Type | Sodium aluminosilicate sulfide (synthetic ultramarine) |
| Product Form | Fine free-flowing powder |
| Appearance | Brilliant blue-violet powder with uniform hue |
| Primary Applications | Coatings, plastics, inks, construction materials, artists’ colors |
| Key Features | Lightfastness Grade 7–8 (ISO 105-B02), non-bleeding, low oil absorption |
| Benefits | Consistent batch-to-batch color, easy wetting, minimal flocculation |
| pH Stability Range | 6.0–10.5 |
| Volatile Matter (105°C, 2h) | ≤ 5.0% w/w |
Q1: What is the primary chemical composition and stability profile of Holliday VM42?
A: Holliday VM42 is a synthetic sodium aluminosilicate-based ultramarine pigment, stabilized with sulfur-containing chromophores. It exhibits excellent lightfastness and thermal stability up to approximately 180 °C in short-term processing conditions, though prolonged exposure above 150 °C may lead to gradual color shift in sensitive systems.
Q2: Is Holliday VM42 suitable for use in acid-sensitive applications such as certain coatings or inks?
A: No — ultramarine pigments, including VM42, are inherently alkaline and susceptible to discoloration or degradation in acidic environments (pH < 6). They should be avoided in formulations containing strong acids, acid-catalyzed resins, or low-pH aqueous systems unless thoroughly buffered and validated for compatibility.
Q3: How does VM42 perform in polymer systems, particularly polyolefins and PVC?
A: VM42 demonstrates good dispersibility in rigid PVC and many thermoplastic elastomers when properly compounded. In polyolefins, it may require specialized carrier resins or surface treatment for optimal dispersion and heat stability; performance varies by melt temperature and residence time during processing.
Q4: Can Holliday VM42 be used in food-contact or pharmaceutical packaging applications?
A: Holliday VM42 is not certified for direct food-contact applications under global regulatory frameworks. Its use in packaging materials must be evaluated case-by-case based on migration potential, end-use conditions, and applicable regional regulations — consultation with regulatory specialists and appropriate testing is strongly recommended before implementation.
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