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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 Pigments for Rubber Products
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Specialist in High-Performance Rubber Colorants
Deqing Demi Pigment Technology Co., Ltd. is a strategic supplier for the global tire and technical rubber industries. We provide the "Heavy Duty" reds required for conveyor belts, seals, and high-performance footwear. Our pigments are chosen for their ability to remain vibrant even under the intense heat and pressure of the molding process. We understand the chemistry of elastomers and ensure our pigments are "Rubber-Safe," helping our clients produce products that last longer and perform better in the field.
Rubber Application Sectors
- Conveyor Belting: Durable red coloring for mining and industrial belts.
- Footwear Soles: High-abrasion reds for athletic and industrial boots.
- Automotive Seals: Heat-stable red for gaskets, hoses, and O-rings.
- Rubber Flooring: UV-stable coloring for gyms and playgrounds.
Rubber Grade Red Specs
| Metric | Value | Standard |
| Fe2O3 Content | Min 96.0% | ISO 1248 |
| Copper (Cu) Content | < 10 ppm | Internal Method |
| Manganese (Mn) Content | < 50 ppm | Internal Method |
| Oil Absorption | 15 - 25 g/100g | ISO 787-5 |
| 325 Mesh Residue | Max 0.1% | ISO 787-7 |
Attributes for Elastomers
- Pro-Oxidant Control: Extends the life of the rubber by preventing metal-induced aging.
- Low Water Absorption: Prevents "blistering" during the high-heat curing process.
- Excellent Rub-Fastness: The color remains fixed and does not "crock" or rub off.
- Fine Particle Size: Ensures uniform coloring without affecting the rubber's tear strength.
Q: Why is Copper/Manganese content so important in rubber?
A: Even trace amounts of Cu or Mn can cause rubber to become brittle and crack prematurely. Our "Rubber Grade" is strictly controlled to prevent this.
Q: Can these be used in Silicone rubber?
A: Yes, our reds are thermally stable and chemically inert, making them perfect for high-temperature silicone parts.
Custom Dispersion & Masterbatch
We provide "Masterbatch-Ready" powders that are treated for easy incorporation into rubber mixers (Banbury mixers), reducing mixing time and improving color uniformity.
Aging Analysis: We can provide "Accelerated Aging" test data on rubber samples containing our pigments, proving the long-term structural integrity of the colored elastomer.
The Science of Elastomer Integration
In rubber coloring, we focus on "Particle-Matrix Adhesion." We use SEM (Scanning Electron Microscopy) to ensure our red particles are perfectly dispersed within the cross-linked polymer network. We monitor the "Tinting Strength" to ensure that the red remains saturated even after the rubber undergoes the thermal expansion of vulcanization. By keeping the a∗ value high, we ensure a deep, professional red that signifies quality in industrial rubber products.
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 Pigments for Rubber Products Manufacturers and Wholesale Red Pigments for Rubber Products 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)
