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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
Pigments Powder for Anti-Corrosive Paints
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Specialist in Protective Coating Colorants
Deqing Demi Pigment Technology Co., Ltd. provides the protective coatings industry with the "backbone" pigments required for anti-corrosive systems. We understand that in harsh environments, the pigment must be more than a colorant; it must be a stable component of a high-performance barrier. Our anti-corrosive grade powders are manufactured to strict purity standards to ensure they do not introduce ions that could catalyze the corrosion process. We are a trusted partner for global infrastructure and marine coating manufacturers.
Corrosion Protection Sectors
- Marine Primers: Anti-corrosive bases for ships and docks.
- Offshore Structures: High-durability coatings for oil rigs and wind turbines.
- Industrial Maintenance: Over-coatings for existing steel structures in factories.
- Automotive Underbody: Protective primers for vehicle chassis and components.
Anti-Corrosive Grade Specs
| Metric | Standard Value | Standard |
| Chloride Content | Max 0.005 | % |
| Water Soluble Matter | Max 0.2 | ISO 787-3 |
| Oil Absorption | 18 - 25 | g/100g |
| Conductivity of Extract | Max 200 | μS/cm |
| Specific Gravity | 4.5 - 5.0 | g/cm3 |
Benefits for Metal Protection
- Blister Resistance: Extremely low soluble salt levels prevent osmotic pressure buildup.
- Chemical Stability: Resistant to the acidic and alkaline by-products of the corrosion cycle.
- Enhanced Adhesion: Provides a "tooth" for subsequent topcoats, improving system longevity.
- Dense Packing: Fine particles fill voids in the resin matrix, improving the moisture barrier.
Q: Do these pigments contain heavy metals like Lead or Chrome?
A: No, our modern anti-corrosive series is based on safe iron oxide and zinc chemistry, providing an eco-friendly alternative to traditional chromates.
Q: How do they perform in salt spray tests?
A: When formulated correctly, our pigments help coatings achieve over 1000 hours of salt spray resistance (ASTM B117) by enhancing the film's impermeability.
Purity-Focused Manufacturing
Our anti-corrosive pigments undergo multiple washing cycles to ensure the removal of all trace chlorides and sulfates. This is verified using Ion Chromatography to guarantee the highest level of purity for sensitive primer applications.
Custom Sizing: We can provide ultra-fine micronized grades for thin-film primers where surface smoothness and dense particle packing are critical for performance.
Optimizing the Barrier Effect
Color science in anti-corrosive coatings often involves "Contrast Matching." We ensure that the primer color (e.g., Red Oxide) provides a distinct visual contrast to the steel substrate and subsequent topcoats, aiding in the verification of film thickness and coverage. We use spectrophotometric data to ensure the "Redness" (a∗) is consistent, which is an industry standard for identifying anti-corrosive layers during maintenance and inspection.
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 Pigments Powder for Anti-Corrosive Paints Manufacturers and Wholesale Pigments Powder for Anti-Corrosive Paints 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)
