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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
Stable Red Iron Oxide Color Materials
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
The Global Standard for Material Stability
At Deqing Demi Pigment Technology Co., Ltd., stability is our promise. We recognize that for manufacturers, a color shift during production is a costly failure. Our "Stable Red" series is engineered with a robust crystal lattice to prevent phase transitions. We provide the "Permanent Red" that serves as the color foundation for the world's most durable construction and industrial products.
Stable Red Usage Areas
- Exterior Facades: Long-term color stability for architectural panels.
- High-Heat Plastics: Stable red for polymers processed up to 250∘C.
- Marine Equipment: Resists the bleaching effect of salt spray and high UV.
- Industrial Safety: Permanent red for fire-suppression equipment and safety markers.
Stable Red Technical Specs
| Metric | Value | Standard |
| Thermal Stability | 250∘C−800∘C | DIN 53775 |
| Chroma Stability (ΔE) | < 0.5 (after heat) | CIELAB |
| Iron Purity | Min 96% | ISO 1248 |
| Oil Absorption | 18 - 25 g/100g | ISO 787-5 |
| Water Solubles | Max 0.3% | ISO 787-3 |
Core Advantages
- Phase Permanence: Will not dehydrate or shift toward brown under heat.
- Chemical Inertness: Resistant to acidic and alkaline environments.
- Non-Migrating: Keeps color boundaries sharp in multi-layer systems.
- Eco-Friendly: Natural mineral base with zero VOC emissions.
Q: What makes these "more stable" than standard oxides?
A: We use a post-synthesis calcination process that "pre-shrinks" the crystal lattice, making it immune to further thermal changes.
Q: Can it be used in solvent-based resins?
A: Yes, its surface is chemically neutral and fully compatible with modern solvents.
Material Performance Services
We offer "Environmental Stress Testing," simulating years of UV and rain exposure to prove the stability of your chosen red material.
Custom Density Grades: We can adjust the bulk density of the material to match your specific feeding and dosing equipment.
The Science of Thermodynamic Equilibrium
Stability in Red Iron Oxide (α−Fe2O3) is a result of reaching "Thermodynamic Finality." During synthesis, we push the crystals to their most stable hexagonal rhombohedral state. The science lies in the "Lattice Energy"—by ensuring each iron atom is perfectly coordinated with oxygen, we eliminate the internal stresses that cause other pigments to fade or change color when exposed to external energy (heat or UV). This scientific precision ensures the pigment is in a state of rest, providing a color that is effectively eternal.
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 Stable Red Iron Oxide Color Materials Manufacturers and Wholesale Stable Red Iron Oxide Color Materials 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)
