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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
Red Iron Oxide for Construction Use
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Building a Vibrant, Lasting Infrastructure
Deqing Demi Pigment Technology Co., Ltd. is a major partner to the global construction industry. We recognize that for builders, "Ease of Use" is just as critical as "Color Stability." Our construction-grade red is designed for rapid dispersion in industrial concrete mixers. We provide the "Mineral Foundation" that allows architects to bring warmth and character to urban landscapes with total confidence in the color's permanence.
Construction Red Usage Areas
- Interlocking Pavers: Durable red and orange-red for pedestrian zones.
- Concrete Roof Tiles: Industry-standard coloring for residential roofing.
- Decorative Mortar: Color-matched joints for brickwork and stone.
- Asphalt Coloring: Heat-stable red for bus lanes and safety zones.
Construction Red Technical Specs
| Metric | Value | Standard |
| Alkali Resistance | Grade 5 (Excellent) | DIN EN 12878 |
| Chloride Content | Max 0.1% | ASTM C979 |
| Tinting Strength | 100% ± 5% | ISO 787-24 |
| Sieve Residue (45$\mu$m) | Max 0.5% | ISO 787-7 |
| Water Absorption | Low | Internal Method |
Core Advantages
- Lime-Proof: Chemically unaffected by the high pH of curing concrete.
- Weathering Resistant: Will not fade, chalk, or wash out over decades of exposure.
- Reinforcement Safe: Low salt content ensures no corrosion to steel rebar.
- Cost-Effective: High tinting power allows for vibrant results at 3-5% loading.
Q: Can I use this for coloring outdoor swimming pool decks?
A: Yes, it is resistant to UV, salt, and chlorine, making it perfect for pool-side masonry.
Q: Does the color change when the concrete dries?
A: Like all concrete, it appears darker when wet. However, the pigment itself is permanent and will not fade once the concrete cures.
On-Site Logistics Services
We offer "Water-Soluble Dosing Bags," allowing you to throw pre-measured pigment packets directly into the mixer to eliminate dust and weighing errors.
Custom Blending for Paver Plants: We can provide pre-blended "Terracotta" or "Heritage Red" to ensure consistent color across large production runs.
The Science of CSH Encapsulation
In construction red, the pigment particles are not just mixed; they are "Encapsulated." As cement hydrates, it forms Calcium Silicate Hydrate (CSH) crystals. The science of our construction grade lies in its particle size—it is small enough to fit within the micropores of the cement matrix but large enough to be physically trapped. This "Mechanical Locking" ensures that the red color becomes a permanent, integral part of the stone, rather than a surface coating that could flake off.
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 Red Iron Oxide for Construction Use Manufacturers and Wholesale Red Iron Oxide for Construction Use 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)
