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High chroma, intense blue-violet hue with excellent lightfastness and weather resistance.
Chemically stable in alkaline systems; resistant to discoloration from lime, cement, and plaster.
Low oil absorption ensures easy dispersion and high tinting strength in diverse media.
Non-toxic and sulfate-free formulation compliant with major global regulatory frameworks for pigments.
Thermally stable up to 250 °C, retaining color integrity during standard processing conditions.
Architectural coatings including interior wall paints and decorative plasters.
Cement-based products such as colored mortars, stucco, and precast concrete elements.
Plastics requiring vibrant, heat-stable blue shades—especially polyolefins and PVC.
Artist-grade pastels, modeling clays, and educational art materials.
Soap and cosmetic colorants where non-bleeding, pH-stable blue tones are required.
| Chemical Type | Sodium aluminosilicate sulfide (synthetic ultramarine) |
| Product Form | Fine, free-flowing powder |
| Appearance | Brilliant blue-violet granular powder |
| Primary Applications | Alkaline-compatible coatings, construction materials, plastics, art supplies |
| Key Features | Alkali-stable, non-toxic, low oil absorption, high dispersibility |
| Benefits | Consistent batch-to-batch color, minimal flocculation, no heavy metals |
| pH Stability Range | 7.5–12.5 |
| Particle Size (D50) | 8–12 µm |
Q1: What is the primary chemical composition of Holliday 16 Ultramarine Pigment?
A: Holliday 16 is a synthetic sodium aluminosilicate-based ultramarine pigment, stabilized with polysulfide chromophores. Its characteristic intense blue hue arises from the sulfur-containing cage structure within the sodalite lattice.
Q2: Is Holliday 16 suitable for use in acid-sensitive applications such as certain coatings or inks?
A: No — like most ultramarine pigments, Holliday 16 is not acid-stable and may undergo color degradation or bleaching in low-pH environments. It is best suited for neutral to alkaline systems, including architectural paints, artist materials, and select plastics formulations where pH control is maintained.
Q3: How does Holliday 16 perform under heat exposure during processing?
A: Holliday 16 exhibits moderate thermal stability and is generally suitable for applications involving processing temperatures up to approximately 120–140 °C. Prolonged exposure above this range — especially in the presence of moisture or acidic residues — may lead to gradual color shift or loss of intensity.
Q4: Can Holliday 16 be used in food-contact or pharmaceutical-grade polymer compounds?
A: Holliday 16 is not certified for direct food-contact or pharmaceutical applications. While it meets general industrial pigment purity standards, it is not approved under FDA 21 CFR or equivalent global food-contact regulations. Customers requiring regulatory compliance for such uses should consult Holliday Technical Services for alternative, compliant options.
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