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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
Concrete Coloring Mineral Pigments
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
The Partner for Modern Concrete Engineering
Deqing Demi Pigment Technology Co., Ltd. provides the architectural and civil engineering sectors with the highest grade of concrete mineral pigments. We understand that concrete is the "Skin" of our cities; our pigments ensure that this skin is vibrant and durable. Our minerals are used in iconic projects worldwide, trusted for their consistency across massive pours and their ability to withstand extreme freeze-thaw cycles and UV exposure without losing their original hue.
Concrete Mineral Application Areas
- Stamped Concrete: Decorative blue, green, and terracotta for walkways.
- Exposed Aggregate: Coloring the matrix to highlight natural stone details.
- Acoustic Barriers: Environmentally-blended browns and greens for highways.
- Concrete Pavers: Mass-produced, integrally colored stones for urban design.
Concrete Mineral Technical Specs
| Property | Value | Standard |
| Total Iron Content | Min 90.0% | ISO 1248 |
| Specific Gravity | 4.5 - 5.0 g/cm³ | ISO 787-10 |
| Color Strength | 95% - 105% | ISO 787-24 |
| Moisture Content | Max 1.0% | ISO 787-2 |
| Sieve Residue | Max 0.3% (on 45$\mu$m) | ISO 787-7 |
Performance Features
- Vapor Permeability: Allows concrete to "breathe," preventing moisture-related cracking.
- Mineral Stability: Unaffected by the heat of the cement hydration process.
- Eco-Safe: Non-leaching and safe for use in water-retention structures.
- Wide Shade Range: From subtle earth tones to vibrant primary safety colors.
Q: Can I use these in white cement?
A: Yes, using white cement as a base will yield much brighter, cleaner pastel colors compared to grey cement.
Q: How much do I need per cubic meter?
A: Dosage typically ranges from 2% to 6% based on the weight of the cementitious material in the mix.
Job-Site Dosing Solutions
We offer "Water-Soluble Bagging," allowing contractors to throw the entire bag into the mixer truck without opening it, ensuring zero dust and precise weight accuracy.
Project Consultation: Our technical team can review your concrete mix design (aggregate color, sand type, and water-cement ratio) to predict the final cured color accurately.
The Science of Hydration Compatibility
In concrete coloring, the interaction between the pigment and the calcium-silicate-hydrate (C-S-H) gel is vital. Our mineral pigments are processed to be chemically inert, ensuring they do not act as "nucleation sites" that could accelerate or retard the setting of the concrete. By maintaining a specific particle size distribution, we ensure the pigment is trapped within the pores of the C-S-H gel, providing permanent color that cannot be eroded by rain or wind.
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 Concrete Coloring Mineral Pigments Manufacturers and Wholesale Concrete Coloring Mineral 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)
