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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
PVC Grade Iron Oxide Pigments
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Dedicated Solutions for the Vinyl Industry
Deqing Demi Pigment Technology Co., Ltd. is a leading provider of mineral pigments for the global PVC sector. We understand that PVC is a sensitive material that requires carefully balanced additives. Our PVC-grade series is produced to be free of impurities that could trigger the dehydrochlorination of the polymer. We provide the "Permanent Color" that makes PVC a viable choice for long-term outdoor infrastructure, from siding to cabling and beyond.
PVC Grade Usage Areas
- Window Profiles: UV-permanent coloring for U-PVC window and door frames.
- Vinyl Flooring: Deep, durable color for luxury vinyl tiles (LVT).
- PVC Piping: Color coding for electrical conduit and drainage pipes.
- Artificial Leather: Soft-touch coloring for PVC-coated fabrics and upholstery.
PVC Grade Technical Specs
| Metric | Value | Standard |
| Acid Resistance | Grade 5 | ISO 105-B02 |
| Volatile Matter | Max 0.3% | ISO 787-2 |
| Tinting Strength | 100% ± 3% | ISO 787-24 |
| Lead/Cadmium Free | Yes | RoHS Compliant |
| Reflective Index | High (Cool-PVC Ready) | ASTM E903 |
Performance Features
- Thermal Stability: Handles the 180∘C−200∘C processing range of PVC easily.
- Anti-Chalking: Maintains surface gloss and color even after years of rain and sun.
- Non-Reactive: Does not interfere with tin or lead-free stabilizers.
- Superior Dispersion: Disperses rapidly in dry-blend mixers before extrusion.
Q: Will these pigments cause my PVC to yellow faster?
A: No, our high-purity oxides are free from catalysts that cause PVC degradation, actually helping to block UV rays.
Q: Are they suitable for "Cool Roof" PVC membranes?
A: Yes, we offer high-reflectance browns and reds that help reduce heat absorption in vinyl roofing.
Vinyl Formulation Support
We provide "Heat Stability Testing" specifically in PVC dry-blends to ensure our pigments won't cause discoloration during long residence times in the extruder.
Custom Dispersion for Plastisols: For flexible PVC and dip-molding, we provide pigments optimized for liquid plasticizers to ensure a smooth, bubble-free finish.
The Science of PVC Stabilization
In PVC applications, we focus on the "Acid-Base Synergy." Our pigments act as "Physical UV Blockers," protecting the fragile C-Cl bonds in the PVC backbone from being broken by sunlight. By ensuring our pigments have an ultra-low surface moisture content, we prevent the formation of "micro-bubbles" (voids) in the rigid PVC matrix, resulting in a stronger, more impact-resistant finished product with a flawless surface finish.
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 PVC Grade Iron Oxide Pigments Manufacturers and Wholesale PVC Grade Iron Oxide 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)
