Iron Oxide Blue

Iron Oxide Blue Pigment: Stable, Earth-Tone Blue for Industrial Formulations

As a dedicated Iron Oxide Blue manufacturer and supplier, Deqing Demi Pigment Technology Co., Ltd. produces synthetic iron oxide blue pigments engineered for consistent performance in demanding applications. Our range includes standard, micronized, and low heavy metal content series, each tailored to meet specific processing and regulatory requirements.

Our blue pigments are used across construction materials, paints and coatings, plastics, ceramics, cosmetics, and artist materials. We combine controlled precipitation processes with rigorous quality checks to deliver the alkali resistance, heat stability, and lightfastness that industrial formulators require.

Product Range and Series

We offer three series of iron oxide blue pigments, each designed for different performance and cost targets:

• Standard Series: Balanced particle size and oil absorption for general-purpose use in concrete, paints, and plastics.
• Micronized Series: Finer particle size (D50 0.1–0.3 μm) for faster dispersion, higher tinting strength, and smoother finishes in coatings and inks.
• Low Heavy Metal Series: Meets strict regulatory limits for cosmetics, food-contact, and toy applications, with low levels of lead, arsenic, and other impurities.

Application Fit and Material Considerations

Iron oxide blue pigments are inorganic and chemically stable, making them suitable for high-pH and high-temperature environments where organic blues may fail. Our pigments are compatible with water-based, solvent-based, and UV-curable systems, as well as thermoplastics and thermosets.

Critical Specifications and Quality Control

Our manufacturing process is ISO-certified, ensuring batch-to-batch consistency. Key parameters include:

• Particle size (D50): 0.1–1.0 μm depending on grade
• Oil absorption: 25–40 g/100g (standard), 18–25 g/100g (micronized)
• Moisture content: ≤1.5%
• pH (10% slurry): 6.0–8.0
• Heat resistance: up to 300°C
• Lightfastness (ISO 105-B02): Grade 7–8

We test each batch for tinting strength, dispersion, and chemical purity. Our low heavy metal series is verified to meet EN71-3, RoHS, REACH, and FDA 21 CFR Part 73 requirements where applicable.

Configuration and Customization

We understand that every formulation has unique demands. Our technical team works with you to select the right grade and series based on your application, processing conditions, and regulatory needs. We can adjust particle size distribution, oil absorption, and surface treatment to optimize dispersion and compatibility.

For example, in epoxy floor systems, we offer micronized grades with lower oil absorption to reduce resin demand and improve leveling. In exterior wall panels, our composite blue pigments are engineered for superior alkali resistance and UV stability.

Automation Integration and Installation Support

Our pigments are designed for easy integration into automated dosing and mixing systems. We provide technical data sheets that include bulk density, flowability, and dispersibility recommendations to help you set up your equipment correctly. For large-volume users, we offer bulk packaging options (500 kg and 1000 kg jumbo bags) that are compatible with pneumatic conveying systems.

Packaging, Storage, and Delivery

We pack our iron oxide blue pigments in 25 kg paper bags with plastic inner liners, or in 500 kg and 1000 kg jumbo bags for bulk supply. Custom packaging is available on request. Proper storage is essential: keep in a cool, dry place with relative humidity below 70% and temperature between 5°C and 35°C. Under these conditions, the shelf life is 24 months from the date of manufacture.

Information We Use to Configure Your Solution

To prepare a precise quotation and product recommendation, we need the following details from you:

• Target application (e.g., concrete, paint, plastic, cosmetic)
• Required color shade and tinting strength
• Processing conditions (temperature, shear, pH)
• Regulatory compliance needs (e.g., EN71-3, FDA, REACH)
• Desired particle size or dispersion level
• Annual volume and packaging preference

With this information, our engineers can match you with the optimal series and grade, ensuring performance and cost-efficiency.

Frequently Asked Questions

What is the difference between Iron Oxide Blue and Prussian Blue?

Prussian Blue (CI Pigment Blue 27) is a ferric ferrocyanide complex, while Iron Oxide Blue is a synthetic iron oxide-based pigment. Prussian Blue offers brighter, more saturated tones but has lower alkali resistance and heat stability. Iron oxide blue is preferred for cement, high-temperature, and long-term weathering applications.

Is your Iron Oxide Blue safe for toys and cosmetics?

Yes, our low heavy metal series complies with EN71-3 and FDA 21 CFR Part 73, making it suitable for toys, cosmetics, and art materials. We provide SDS and compliance documentation upon request.

How should I disperse Iron Oxide Blue in water-based coatings?

Pre-wet the pigment with water and a dispersant (1–3% based on pigment weight) before milling. High-speed dispersers, bead mills, or three-roll mills work well. For best results, use our micronized grade, which disperses faster and more uniformly.

Can Iron Oxide Blue be blended with other iron oxide colors?

Yes, it blends well with red, yellow, and black iron oxides to create a wide range of earth tones and grays. We recommend compatibility testing when mixing with organic pigments to avoid flocculation.

What is the heat resistance of your Iron Oxide Blue?

Our standard series withstands temperatures up to 300°C, making it suitable for baked coatings and high-temperature plastic processing. For extreme conditions, please consult our technical team.