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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 Iron Oxide 330 High Stability
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Elevating Performance with Grade 330
At Deqing Demi Pigment Technology Co., Ltd., we push the boundaries of inorganic chemistry with our 330 series. We recognize that industrial standards are constantly rising, and standard pigments sometimes fall short. Our 330 black oxide is designed for manufacturers who require that extra margin of stability. We provide the "Technical Edge" black that allows your products to survive harsher processing and more aggressive end-use conditions without losing their aesthetic appeal.
Grade 330 Usage Areas
- Powder Coatings: High-heat stable black for metal finishes.
- Plastic Masterbatch: Durable coloring for engineering polymers like ABS and PA.
- Industrial Primers: Corrosion-resistant layers for heavy machinery.
- Technical Rubbers: UV and heat-stable black for gaskets and seals.
Grade 330 Technical Specs
| Metric | Value | Standard |
| Heat Stability | Up to 220∘C | Internal Method |
| Fe3O4 Purity | Min 97% | ISO 1248 |
| Oil Absorption | 15 - 20 g/100g | ISO 787-5 |
| PH Stability | Range 4.0 - 10.0 | Internal Method |
| Particle Size (D50) | 0.2 - 0.5 μm | Laser Diffraction |
Core Advantages
- Superior Heat Resistance: Maintains a deep black tone at higher temperatures than grade 318.
- Intense Blue-Black Undertone: Provides a more "premium" and "colder" black finish.
- Low Oil Absorption: Allows for higher pigment loading in coatings without excessive thickening.
- Chemical Inertness: Resistant to solvents and aggressive cleaning agents.
Q: How does 330 differ from standard 318?
A: Grade 330 has higher purity and is specifically treated to resist heat and oxidation better, making it superior for coatings and plastics.
Q: Can I use 330 in outdoor architectural paints?
A: Yes, its extreme weatherability makes it an excellent choice for permanent exterior black finishes.
Advanced Stability Consulting
We provide "Thermal Degradation Profiles," showing you exactly at what temperature and duration the 330 grade begins to shift, helping you optimize your processing window.
Custom Micronized 330: We can offer jet-milled versions of grade 330 for ultra-thin film coatings where surface smoothness is the top priority.
The Science of Thermal Passivation
The high stability of grade 330 is achieved through "Nano-Surface Passivation." During synthesis, we apply a microscopic inorganic layer that slows the diffusion of oxygen into the Fe3O4 crystal lattice. This significantly raises the "Oxidation Threshold"—the temperature at which the black magnetite begins to turn into red hematite. This scientific enhancement allows 330 to maintain its deep black color during the high-heat cycles of powder coating and plastic molding, providing a more reliable and consistent finished product.
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 Iron Oxide 330 High Stability Manufacturers and Wholesale Black Iron Oxide 330 High Stability 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)
