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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
Exterior Grade Color Pigments Powder
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Supplier of Weather-Resistant Pigments
Deqing Demi Pigment Technology Co., Ltd. provides high-durability colorants for the global exterior building materials market. Our exterior grade powders undergo rigorous environmental simulation testing to ensure they meet the 10-year and 20-year color retention requirements of architectural projects. We understand that exterior surfaces are the first line of defense against the elements, and our pigments are manufactured to provide both aesthetic value and functional protection against photodegradation.
Exterior Product Usage
- Facade Paints: Pigmentation for long-life exterior emulsion and masonry paints.
- Roofing Granules: Coloring for asphalt shingles and clay tile coatings.
- External Thermal Insulation: Colorants for thin-coat renders and EIFS systems.
- Street Furniture: Integral coloring for outdoor benches, planters, and bollards.
Exterior Performance Data Table
| Parameter | Performance | Unit |
| Lightfastness | 7 - 8 | Blue Wool Scale |
| Weatherfastness | 4 - 5 | Grey Scale (500h) |
| Heat Resistance | Up to 200 | Degrees Celsius |
| Oil Absorption | 20 - 30 | g/100g |
| Average Particle Size | 0.1 - 0.8 | Micron |
Attributes for Outdoor Exposure
- Maximum UV Stability: The pigment structure reflects and absorbs UV energy without chemical breakdown.
- Acid/Alkali Resistance: Unaffected by acid rain or alkaline substrate conditions.
- Low Volatility: No organic solvents or fugitive compounds that could lead to "chalking" of the surface.
- Thermal Stability: Maintains hue even in dark colors that absorb significant solar heat.
Q: Will the color fade over time?
A: Inorganic pigments are inherently more stable than organic dyes. While all materials undergo some change over decades, our exterior grades are rated 7-8 on the Blue Wool Scale, representing the highest industry standard for lightfastness.
Q: Are these pigments compatible with solvent-based sealers?
A: Yes, their inorganic nature makes them compatible with both water-borne and solvent-borne exterior coating systems.
Advanced Stability Testing
Every batch of exterior grade pigment is subjected to accelerated weathering tests in our QC laboratory. This ensures that the pigments delivered to our customers provide the necessary resistance to humidity, heat, and UV.
Custom Formulation: We can adjust the surface treatment of the powder to optimize its performance for specific binders, such as high-performance fluorocarbon or silicone-modified coatings used in modern skyscrapers.
Photostability and Spectral Analysis
The "exterior grade" designation is verified through spectral reflectance analysis before and after exposure to UV-B radiation. We track the shift in the spectral curve to ensure that the pigment does not undergo "reductive fading." By maintaining the purity of the oxide crystal, we ensure that the energy from sunlight is dissipated as harmless heat rather than breaking chemical bonds, keeping the L* a* b* values within the strict tolerances required for high-visibility architectural landmarks.
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 Exterior Grade Color Pigments Powder Manufacturers and Wholesale Exterior Grade Color Pigments Powder 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)
