Iron Oxide Black 740

Product Introduction

Iron Oxide Black (Fe₃O₄) is a high-performance inorganic pigment compliant with national standards for industrial applications. As a widely used black pigment, it is synthesized through rigorous industrial processes to ensure consistent quality, stable chemical properties, and reliable coloring performance. This product is characterized by its deep black hue, excellent weather resistance, and compatibility with various substrates, making it a versatile choice for general industrial coloring needs. It meets the core requirements of national standards for purity, particle size, and application stability, serving as a cost-effective solution for industrial production.

Color Depth: 723 > 790 > 330 > 740

Best Seller: 723 is mainly used for concrete applications, and 790 is the darkest in China.

Advantage

1. High Purity and Stable Composition: Adhering to national standards, the product has a high iron oxide content (typically ≥95%), ensuring strong and uniform coloring power. Its stable chemical composition resists oxidation, reduction, and discoloration under normal industrial conditions.

2. Excellent Weather Resistance: It exhibits good resistance to light, heat, and moisture, maintaining color stability in outdoor or humid environments. Unlike organic pigments, it does not fade easily due to UV exposure or temperature fluctuations.

3. Fine Particle Size and Good Dispersibility: With controlled particle size distribution (usually ≤10μm), the pigment disperses evenly in various matrices such as coatings, plastics, and building materials, avoiding agglomeration and ensuring smooth surface finish of the final products.

4. Low Impurities and Environmental Compatibility: Compliant with national environmental standards, it contains minimal heavy metal impurities (e.g., lead, cadmium) and harmful substances, making it safe for use in non-toxic industrial applications and reducing environmental impact during production and use.

5. Cost-Effective and Versatile: As a general industrial-grade product, it offers a balance between performance and cost, suitable for large-scale industrial applications. Its compatibility with resins, binders, and other additives simplifies production processes and reduces formulation costs.

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Main Uses

Iron Oxide Black is widely applied in numerous industrial fields.

1. Coatings Industry: Widely used in industrial coatings, such as rust-proof coatings for steel structures, machinery, and pipelines. It provides deep black coloring while enhancing the coating’s durability and resistance to corrosion.

2. Plastics and Rubber Industry: Applied in coloring plastic products (e.g., plastic pipes, automotive parts, household appliances) and rubber products (e.g., tires, seals). It ensures uniform black coloration without affecting the mechanical properties of plastics or rubber.

3. Building Materials Sector: Used in coloring cement, concrete, asphalt, and construction coatings. It imparts a consistent black shade to building components, such as paving stones, wall panels, and roof materials, while withstanding outdoor weathering.

4. Ink and Pigment Concentrates: Utilized in manufacturing industrial inks, printing inks, and pigment concentrates for paper coating, providing stable black color with good printability and adhesion.

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