English
عربى
русский
EspañolProfessional Inorganic Iron Oxide Pigments
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.
View Products Contact Us
Product Details
Comprehensive information about our iron oxide pigments including specifications, applications, advantages, and more
Yellow Iron Oxide for Construction Use
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
The Architecture of Enduring Color
Deqing Demi Pigment Technology Co., Ltd. is a cornerstone supplier to the global construction market. We recognize that for a building, "Yellow" is an investment in aesthetic value. Our construction-grade yellow is designed for the high-alkali environment of wet concrete. We provide the "Mineral Permanence" that ensures public squares, residential roofs, and urban facades look as vibrant in fifty years as they do on opening day.
Construction Yellow Usage Areas
- Concrete Pavers: Creating warm, inviting tones for plazas and sidewalks.
- Roofing Tiles: Essential for "Mediterranean" and "Terracotta" style roofs.
- Decorative Stucco: Providing natural earth-yellows for exterior wall renders.
- Mortar & Grout: Color-matched joints for brick and stone masonry.
Construction Yellow Technical Specs
| Metric | Value | Standard |
| Alkali Resistance | Grade 5 (Excellent) | DIN EN 12878 |
| Chloride Content | Max 0.1% | ASTM C979 |
| Water Soluble Matter | Max 0.3% | ISO 787-3 |
| Sieve Residue (45$\mu$m) | Max 0.5% | ISO 787-7 |
| Tinting Strength | 100% ± 5% | ISO 787-24 |
Core Advantages
- Lime-Proof: Will not react or fade when mixed with wet cement or lime.
- UV/Weather Permanent: Totally resistant to sunlight and acid rain.
- Safe for Structural Concrete: Low salt profile ensures no corrosion to steel reinforcement.
- High Value: Provides intense coloring at low dosage rates (3-5%).
Q: Why does my yellow concrete look "faded" after a month?
A: This is usually "Efflorescence" (white salt deposits) on the surface, not the pigment fading. Our low-salt yellows help minimize this effect.
Q: Can I mix yellow and red for orange concrete?
A: Yes! Our yellow oxide blends perfectly with our red and black to create an infinite range of custom masonry colors.
Construction Engineering Services
We offer "Efflorescence Reduction Audits," helping you optimize your mix design to keep the yellow color bright and salt-free.
Custom Packaging for Mixers: We provide "Toss-In" water-soluble bags for dust-free, accurate dosing in high-volume concrete plants.
The Science of Hydrogen-Bond Stability
Yellow Iron Oxide (α-FeOOH) is held together by "Hydrogen Bonding" within its crystal lattice. In the high-alkali environment of curing cement (pH>12), many pigments break down. The science of our construction-grade yellow lies in its "Lattice Integrity"—the crystal structure is so robust that the OH (hydroxyl) groups remain tightly bound, preventing the pigment from dissolving or reacting with the calcium hydroxide in the cement. This ensures the yellow remains chemically locked and visually vibrant.
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 Yellow Iron Oxide for Construction Use Manufacturers and Wholesale Yellow 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.
-
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)
