What Is Ultramarine Blue Pigment?
Ultramarine Blue Pigment (Pigment Blue 29, CI 77007, CAS 57455-37-5) is one of the world’s most important inorganic blue colorants. Originally derived from the rare Lapis Lazuli gemstone, modern Ultramarine Blue Pigment is produced through a controlled high-temperature calcination process using silica, kaolin, sodium carbonate, and sulfur. The result is a vivid, chemically stable, and non-toxic blue pigment with exceptional industrial performance.
The molecular formula of Ultramarine Blue Pigment is Na₆Al₆Si₆O₂₄S₄, giving it remarkable resistance to alkalis (stable at pH 7–14) and heat (up to 400°C). These properties make Ultramarine Blue Pigment the preferred choice for applications where durability, safety, and color permanence are essential.
SKU Pigments manufactures Ultramarine Blue Pigment in multiple grades — standard, fine, ultrafine, and surface-treated — to meet the exact needs of every industrial application from paints and plastics to cosmetics and construction.
Key Applications of Ultramarine Blue Pigment
Ultramarine Blue Pigment serves a wide range of industries worldwide:
- Paints & Coatings: Architectural, industrial, marine, and automotive paints rely on Ultramarine Blue Pigment for its alkali resistance, lightfastness (Blue Wool 7–8), and vivid blue tone.
- Plastics & Masterbatch: With 400°C heat stability, Ultramarine Blue Pigment is ideal for PP, PE, PVC, and engineering plastic coloring without color shift.
- Printing Inks: Fine grades of Ultramarine Blue Pigment provide clean, consistent blue in offset, flexo, and gravure inks.
- Cosmetics: FDA and EU Cosmetics Regulation (Annex IV) approved cosmetic-grade Ultramarine Blue Pigment is used in eye shadows, lipsticks, and blushers.
- Laundry & Paper: At 0.05% loading, Ultramarine Blue Pigment acts as an optical brightener, counteracting yellowing in white fabrics and paper.
- Construction: Alkali-resistant Ultramarine Blue Pigment safely colors concrete, cement renders, and lime plasters.
Contact SKU Pigments for free samples, technical data sheets, and export pricing for Ultramarine Blue Pigment in any grade or quantity.
Also explore: Ultramarine Blue Products | UB for Plastics | Request Free Sample
References: Ultramarine — Wikipedia | REACH Compliance — ECHA
Related Reading: Ultramarine Blue Manufacturer | Pigment Blue 29 Technical Data | Ultramarine Blue for Plastics
About SKU Pigments: Shree Krishna Ultramarine Pigments P. Limited is India’s leading manufacturer of Ultramarine Blue (Pigment Blue 29), Ultramarine Violet (Pigment Violet 15), and Ultramarine Pink pigments. ISO 9001:2015 certified. Exporting to 40+ countries. Contact us for free samples and export pricing.