Customer Case Study: Saudi Client Recognizes Our Sodium Sulfate Filler Masterbatch
A Saudi customer tested our sodium sulfate filler masterbatch in ABA co-extrusion films. After visiting our factory and conducting a 25 kg sample trial, the customer reported higher film transparency and stable processing with 60–80% filler loading in the B layer.
1. Project Background
A Saudi client approached us seeking a solution to reduce material costs while maintaining—or even improving—the quality of ABA co-extrusion films. They required a filler masterbatch that could be added at high ratios (60–80% in the B layer) without compromising transparency or extrusion stability.
2. Factory Visit and Evaluation
The client visited our factory for an on-site inspection. They evaluated our production capacity, equipment conditions, raw material testing procedures, and quality control systems. Our team guided them through production lines, lab testing areas, and packaging facilities.
Result: The client confirmed that our factory met their expectations in terms of scale and quality control. They appreciated our strict lab protocols, clean production environment, and professionalism.
3. Sample Delivery and Testing
After the factory visit, we shipped a 25 kg sample of our sodium sulfate filler masterbatch. The client incorporated it into the B layer of their ABA co-extrusion process at a 60–80% loading ratio.
Testing focus included:
Film clarity
Extrusion stability
Drawdown behavior
Final mechanical properties of the film
4. Customer Feedback
The customer shared positive results:
Improved Transparency: At the same loading level, films produced with our masterbatch were noticeably clearer than their previous product.
Stable Processing: The masterbatch mixed smoothly, without clogging or flow issues during extrusion.
Quality Upgrade: Overall product quality increased, improving their competitiveness in the market.
“We tested your Sodium Sulfate Filler Masterbatch and were impressed. At the same addition ratio, the blown film was clearer and smoother than before. This improved our product quality and customer satisfaction. We look forward to further cooperation.”
5. Advantages of Sodium Sulfate Filler Masterbatch
High transparency compared to conventional fillers
Excellent dispersion with dust-free pellets for smooth feeding
High filler loading capability (60–80% in B-layer applications)
Good compatibility with PE/PP resins used in co-extrusion
Stable melt flow for reliable extrusion
Non-toxic and safe for packaging applications
6. Technical Parameters
| Property | Value / Range | Notes |
|---|---|---|
| Main Component | Sodium sulfate | Inorganic filler |
| Carrier Resin | PE / PP | High compatibility |
| Filler Content | 70–85% | Recommended 60–80% in B layer |
| Melt Flow Index (MFI) | 5–15 g/10min | Measured at 190°C / 2.16kg |
| Density | 1.6–1.8 g/cm³ | Higher than virgin resin |
| Moisture Content | ≤0.15% | Ensures stable processing |
| Pellet Size | 2–3 mm | Uniform, dust-free |
| Typical Applications | ABA films, bags, packaging films | Improves cost and clarity |
7. Factory Advantages
Our factory brings over 10 years of experience in masterbatch production. Equipped with advanced twin-screw extrusion lines and automated testing systems, we ensure stable and consistent quality for every batch. Our R&D team develops tailored solutions to meet diverse customer needs.
We follow strict quality control procedures, from raw material selection to final product inspection. Combined with large-scale production capacity, this ensures timely delivery and competitive pricing. These factors make us a trusted partner for clients seeking sodium sulfate filler masterbatch and other masterbatch solutions.
8. Product Series
Beyond sodium sulfate filler masterbatch, our portfolio includes:
Desiccant masterbatch (high moisture absorption)
Finished plastic bags (customized)
Each product line is optimized for different applications, from films and packaging to pipes, cables, and injection molding. We provide flexible customization for color, additive ratio, and performance properties to match client requirements.
9. Market Outlook
The Middle East shows strong demand for cost-effective, high-performance plastic materials. Sodium sulfate filler masterbatch is ideal for manufacturers seeking cost reduction, enhanced transparency, and stable processing at high filler loadings. Sustainability trends also drive interest in fillers compatible with recycled plastics. Our stable supply, technical support, and customizable solutions position us well to meet these market needs.
10. Next Steps and Future Cooperation
Following the successful trial, the client expressed interest in long-term collaboration. Our team is preparing detailed supply proposals, technical support plans, and larger trial shipments. We will continue on-site technical assistance and help optimize production parameters.
Our future market targets are the Middle East, Africa, Europe, and Southeast Asia.We welcome joint development project, distributor partnerships, and long-term collaborations that advance performance and cost-efficiency in the plastics industry.



