Holliday VM44 Ultramarine Pigment

Features Of Holliday VM44 Ultramarine Pigment

1. High chroma, intense blue-violet shade with excellent tinting strength.

2. Outstanding lightfastness and weather resistance for long-term color stability.

3. Chemically stable under alkaline conditions, suitable for cementitious and plaster systems.

4. Low oil absorption for efficient dispersion and improved formulation viscosity control.

5. Non-toxic, sulfate-free formulation compliant with EU REACH and US FDA indirect food contact guidelines (for applicable applications).

Typical Applications Of Holliday VM44 Ultramarine Pigment

1. Architectural coatings including interior emulsions and decorative plasters.

2. Concrete and mortar coloration for precast elements and architectural concrete surfaces.

3. Plastic compounds for rigid PVC profiles, polypropylene fibers, and masterbatches.

4. Ceramic glazes and underglaze decorations requiring alkali-stable blue hues.

5. Artist-grade acrylics, gouaches, and specialty inks where purity and clarity of hue are critical.

Specifications Of Holliday VM44 Ultramarine Pigment

Holliday VM44 Ultramarine Pigment – Frequently Asked Questions (FAQ)

Q1: What is the primary chemical composition and structural class of Holliday VM44?

A: Holliday VM44 is a synthetic ultramarine pigment based on a sodium aluminosilicate matrix with polysulfide chromophores. It belongs to the inorganic sulfide class of pigments and derives its intense blue hue from trapped S₃⁻ radical anions within the sodalite cage structure.

Q2: Is Holliday VM44 suitable for use in acid-sensitive applications such as certain coatings or cleaning formulations?

A: No — Holliday VM44 is alkaline-stable but highly sensitive to acidic environments. Exposure to low pH conditions (typically below pH 5) can cause irreversible decoloration and sulfur release due to degradation of the sodalite framework. It is recommended only for neutral-to-alkaline systems.

Q3: How does Holliday VM44 perform under UV exposure and elevated temperatures?

A: Holliday VM44 exhibits good thermal stability up to approximately 250 °C in inert or oxidizing atmospheres, but prolonged exposure above this range may lead to gradual color shift. Its UV resistance is moderate; extended outdoor exposure without protective binders or overcoats may result in surface fading due to photochemical oxidation of polysulfide species.

Q4: Can Holliday VM44 be used in food-contact plastics or cosmetics?

A: Holliday VM44 is not approved for direct food contact or cosmetic applications under current major regulatory frameworks (e.g., FDA 21 CFR, EU Cosmetics Regulation). It is intended for industrial and decorative uses including architectural paints, artist materials, and non-food packaging inks where regulatory compliance permits.

Q5: What is the typical dosage range when incorporating Holliday VM44 into water-based architectural coatings?

A: Dosage depends on desired chroma, opacity, and formulation matrix, but Holliday VM44 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to total formulation solids — to achieve strong blue intensity while maintaining dispersion stability and avoiding flocculation.