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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
High Opacity Black Oxide Colorants
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Achieving Total Darkness with Efficiency
At Deqing Demi Pigment Technology Co., Ltd., we specialize in the "Science of Hiding." We recognize that for our clients, reducing pigment usage while maintaining color depth is the key to profitability. Our high-opacity black series is designed to deliver maximum color value per kilogram. We provide the "Total Blockout" that allows manufacturers to achieve jet-black results with high efficiency and lower overall material costs.
High Opacity Black Usage Areas
- Primers & Sealers: Total coverage for masking old paint or raw substrates.
- Concrete Blocks: Deep, uniform black for architectural masonry units.
- Automotive Underbody: High-durability, high-hiding black for chassis protection.
- Plastic Films: Opaque black for agricultural mulching and packaging films.
Opacity Performance Specs
| Metric | Value | Comparison |
| Hiding Power Index | > 110% | Vs. Std Black |
| Tinting Strength | 100% ± 2% | ISO 787-24 |
| Particle Size (D50) | 0.2 - 0.4 μm | Optimized for Hiding |
| Oil Absorption | 18 - 22 g/100g | ISO 787-5 |
| Specific Gravity | 4.6 - 5.0 g/cm³ | ISO 787-10 |
Core Advantages
- Reduced Loading: Achieve a full black shade with up to 15% less pigment.
- Superior Uniformity: Eliminates "streaking" and "holidays" in coatings.
- Economic Efficiency: Lowers the cost-per-square-meter of the finished product.
- Broad Compatibility: Works perfectly in water, solvent, and powder systems.
Q: Does "High Opacity" mean the pigment is thicker?
A: No, it means the particles are sized more efficiently to absorb light. The viscosity of your product remains easy to handle.
Q: Can I use this for coloring recycled plastics?
A: Yes, its high hiding power is perfect for masking the inconsistent colors of recycled plastic feedstocks.
Efficiency Consulting Services
We offer "Hiding Power Benchmarking," comparing our high-opacity black against your current colorant to demonstrate the potential material savings.
Custom Batch Sizing: We can provide the high-opacity black in exact "Bag-per-Batch" weights to streamline your production efficiency.
The Science of Scattering-to-Absorption Ratios
Opacity in black pigments is a function of "Total Spectral Absorption." While white pigments rely on scattering light, high-opacity black works by ensuring that every photon that enters the film is absorbed by an iron atom. The science behind our grade lies in the "Refractive Index Matching"—we ensure the pigment particles are sized at roughly half the wavelength of visible light. This scientific optimization ensures that no light "leaks" through the spaces between particles, providing the "Infinite Depth" of black required for premium industrial and architectural finishes.
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 High Opacity Black Oxide Colorants Manufacturers and Wholesale High Opacity Black Oxide Colorants 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)
