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Demei focuses on the research, development, and production of inorganic iron oxide pigments. Our pigments cover iron oxide red, yellow, black, brown, green, orange, blue, etc.
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Product Details
Comprehensive information about our iron oxide pigments including specifications, applications, advantages, and more
Black Oxide for Coating Systems
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
The Pigment Foundation for Advanced Coatings
Deqing Demi Pigment Technology Co., Ltd. is a trusted partner to the global coatings industry. We recognize that in a liquid system, the pigment must be "Active" yet "Stable." Our coating-grade black is engineered to provide maximum color development with minimal impact on rheology. We provide the "Liquid-Optimized Black" that allows paint manufacturers to produce high-durability coatings that are easy to apply and beautiful to behold.
Coating System Usage Areas
- Architectural Paints: Deep, non-fading black for interior and exterior walls.
- Industrial Enamels: Tough, protective black for machinery and metal parts.
- Wood Stains: Fine black for achieving "Ebony" and deep walnut finishes.
- Powder Coatings: Heat-stable black for electrostatic spray applications.
Coating Grade Technical Specs
| Metric | Value | Standard |
| Hegman Fineness | 6.5 - 7.5 | ISO 1524 |
| Oil Absorption | 18 - 25 g/100g | ISO 787-5 |
| pH of Slurry | 6.5 - 8.5 | ISO 787-9 |
| Water Solubles | Max 0.3% | ISO 787-3 |
| Hiding Power | Max 15 g/m² | Internal Method |
Core Advantages
- Superior Wetting: Designed for rapid "In-take" in high-speed dispersers.
- Color Permanence: Inorganic structure ensures zero UV degradation or "bleaching."
- System Compatibility: Stable in both water-borne and solvent-borne formulations.
- High Loading Efficiency: Achieves total opacity with low pigment-to-binder ratios.
Q: Will this pigment cause "Rub-up" in my paint?
A: No, our coating-grade black is treated to ensure "Steric Stabilization," which prevents the pigment from separating during drying.
Q: Is it suitable for corrosion-resistant primers?
A: Yes, its low soluble salt content makes it an excellent component for protective metal primers.
Coatings R&D Services
We offer "Gloss-Drop Analysis," helping you find the perfect pigment concentration that balances color depth with your desired gloss level.
Custom Pre-Slurry: We can provide the black oxide in a pre-dispersed liquid form to speed up your manufacturing process.
The Science of Interfacial Wetting
For a black pigment to perform in a coating, it must undergo "Phase Transfer." The science behind our grade lies in "Amphiphilic Surface Modification." We treat the oxide particles with agents that have one end "Mineral-Loving" and the other "Resin-Loving." This scientific bridge reduces the interfacial tension between the pigment and the liquid binder, allowing the air to be displaced by resin instantly. This ensures a "Complete Wrap," which leads to better film strength, higher gloss, and total color stability.
About Demei
Demei Chemical Co., Ltd. specializes in the research, development, and production of inorganic iron oxide pigments. With over a decade of experience in the field, we have established ourselves as a leading manufacturer with advanced production facilities and a dedicated R&D team.
We are China Custom Black Oxide for Coating Systems Manufacturers and Wholesale Black Oxide for Coating Systems Suppliers, Factory. Our comprehensive pigment range includes iron oxide red, yellow, black, brown, green, orange, and blue. We produce high-performance and high-stability composite iron oxide pigments with three specialized series: Standard, Micronized, and Low Heavy Metal Content levels.
Our products are exported to more than 30 countries and regions worldwide, serving diverse industries including construction, coatings, plastics, rubber, ceramics, and paper. We pride ourselves on consistent quality, excellent color properties, and reliable technical support for our global clients.
R&D Excellence
Continuous investment in research and development ensures technological leadership. Our R&D center focuses on innovative pigment formulations and application technologies.
Advanced Manufacturing
State-of-the-art production facilities with automated control systems ensure consistent quality and large-scale production capacity of over 50,000 tons annually.
Quality Assurance
Strict quality control at every production stage. Certified to ISO 9001:2015, our pigments meet international standards for color consistency and performance.
Global Reach
Extensive distribution network across Asia, Europe, Americas, and Africa. We provide customized solutions and technical support for diverse market requirements.
Core Products
We provide a full range of high-quality inorganic iron oxide pigments, widely used in building materials, coatings, plastics, rubber, ceramics and other industries.
Product Series
We offer three specialized series of iron oxide pigments to meet diverse industry requirements and application scenarios
Standard Series
Conventional particle size iron oxide pigments suitable for most industrial applications. Excellent dispersibility and tinting strength with high cost-performance ratio.
Micronized Series
Ultra-fine particle size with uniform distribution. Ideal for high-end coatings, plastics, and applications requiring superior fineness and smooth finish.
Low Heavy Metal Series
Strictly controlled heavy metal content meeting international environmental standards. Suitable for toys, food packaging, and safety-sensitive applications.
Social Responsibility
Demei not only contributes to production and operation, but also faithfully fulfills its social responsibilities, protects the ecological environment, strengthens safe production, and cares for the health of employees.
Environmental Protection
Implementing green production processes, reducing waste emissions, and actively promoting circular economy principles.
Safe Production
Comprehensive safety management system ensuring controlled and secure operations throughout the production process.
Employee Health
Providing healthy working environments, regular health check-ups, and focusing on physical and mental well-being of our employees.
Community Contribution
Active participation in community development, supporting educational initiatives, and giving back to society.
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Phone
86-572-8035379
86-13666526593 -
Hours
Monday-Friday: 9am to 6pm
Saturday, Sunday: Closed -
Address
20th Floor, Mibei Chuanggongchang No. 650 Yunxiu South Road, Deqing County, Huzhou City, Zhejiang Province, China(Sales Office)
