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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
Asphalt Grade Iron Oxide Pigments
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Paving the Way with Durable Color
Deqing Demi Pigment Technology Co., Ltd. is a pioneer in providing coloring solutions for the global paving industry. We understand that colored asphalt is used not just for beauty, but for safety and urban heat management. Our asphalt-grade series is designed to withstand the heavy friction of traffic and the relentless exposure to UV rays. We provide the technical reliability that municipalities and contractors depend on to build colorful, safe, and sustainable infrastructure.
Asphalt Grade Usage Areas
- Bus & Cycle Lanes: High-visibility red and green paths for traffic safety.
- Pedestrian Walkways: Aesthetic coloring for park paths and plazas.
- Driveways & Entrances: Premium colored asphalt for residential and commercial properties.
- Safety Zones: Sharp color contrast for school zones and intersections.
Asphalt Grade Technical Specs
| Metric | Value | Standard |
| Heat Stability | Max 200∘C | Internal Method |
| Oil Absorption | 15 - 25 g/100g | ISO 787-5 |
| Moisture Content | Max 0.5% | ISO 787-2 |
| Tinting Strength | 100% ± 5% | ISO 787-24 |
| Fineness (Residue 45$\mu$m) | Max 0.3% | ISO 787-7 |
Core Advantages
- Thermal Resilience: Will not fade or darken during high-temperature batching.
- Anti-Aging: Provides a UV shield that slows down the oxidation of the bitumen.
- High Contrast: Maintains bright colors even when mixed with dark binders.
- Eco-Friendly: Natural mineral oxides that are safe for ground water.
Q: Can I use standard pigments in hot-mix asphalt?
A: Standard pigments may lose color at high heat. Our asphalt grade is specially heat-stabilized for this application.
Q: Does color affect the asphalt's strength?
A: No, our pigments are chemically inert and do not interfere with the binder's adhesive properties.
Infrastructure Solutions
We provide "Bitumen Compatibility Testing" to ensure our pigments work perfectly with your specific local grade of asphalt binder.
Batch-Size Packaging: We offer "Melt-Away" PE bags that can be thrown directly into the asphalt mixer, ensuring clean handling and precise dosage.
The Science of Bitumen Tinting
In asphalt science, the challenge is "Binder Masking." Because bitumen is naturally dark, the pigment must have exceptionally high "Refractive Power" to overcome the black base. We optimize the particle size to ensure maximum light reflection. Additionally, we focus on the "Hydrophobic Surface" of the pigment to ensure it bonds perfectly with the oil-based bitumen, preventing the color from washing away or fading as the pavement wears down over time.
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 Asphalt Grade Iron Oxide Pigments Manufacturers and Wholesale Asphalt Grade Iron Oxide Pigments 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)
