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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
Synthetic Rubber Color Pigments
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Powering the Synthetic Revolution
At Deqing Demi Pigment Technology Co., Ltd., we stay ahead of the curve in polymer science. As synthetic rubbers replace natural ones in many applications, we have developed a series of pigments specifically for these materials. Our synthetic rubber series is tested for compatibility with a wide range of industrial elastomers. We provide the color consistency that manufacturers need for everything from consumer electronics to heavy-duty automotive seals, ensuring performance and beauty in every part.
Synthetic Rubber Usage Areas
- EPDM Gaskets: Weatherproof coloring for window and door seals.
- NBR Hose Pipes: Oil-resistant colors for automotive and industrial hoses.
- SBR Flooring: Durable, high-traffic coloring for sports tracks and mats.
- Silicone Keypads: High-heat stable colorants for electronic components.
Synthetic Grade Technical Specs
| Metric | Value | Standard |
| Residue 325 Mesh | Max 0.05% | ISO 787-7 |
| Migration Resistance | Grade 5 (Excellent) | DIN 53239 |
| Ash Content | Within Strict Tolerance | ISO 247 |
| Particle Size (D50) | 0.4 - 0.8 μm | Laser Diffraction |
| Volatile Matter | Max 0.3% | ISO 787-2 |
Performance Attributes
- Non-Migratory: Color won't transfer to plastics or fabrics in contact with the rubber.
- Chemical Resistance: Unaffected by hydraulic fluids, oils, and industrial detergents.
- Narrow PSD: Ensures perfectly smooth surfaces for high-precision molded parts.
- High Purity: Minimizes the risk of electrical conductivity in insulating rubbers.
Q: Do these pigments work with EPDM?
A: Yes, our pigments are excellent for EPDM, providing great weatherability and UV protection for outdoor seals.
Q: Will the color "bleed" in contact with plasticizers?
A: No, being inorganic, our pigments are 100% insoluble in oils and plasticizers, ensuring zero migration.
Polymer Application Lab
We offer "Migration Testing" services, where we place your colored rubber in contact with other materials under heat and pressure to guarantee zero color transfer.
Custom Color Matching: We can match the specific shades required for international safety standards (like safety orange or electrical blue) within the synthetic rubber matrix.
The Science of Diffusion Prevention
In synthetic elastomers, the key challenge is "Pigment Leaching." We address this by ensuring our pigments have an "Inert Surface." By removing all small-molecule impurities during manufacturing, we ensure there is nothing to dissolve into the oils or plasticizers found in synthetic rubber. This keeps the color "physically trapped" in the polymer cross-links. We use "CIE Lab Color Matching" to ensure that the color shift after vulcanization is predictable and minimized, maintaining your design intent.
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 Synthetic Rubber Color Pigments Manufacturers and Wholesale Synthetic Rubber Color Pigments 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)
