Leading White Masterbatch for PE/PP: Why Wanzhoutong's 70% TiO2 Masterbatch Fits Injection and Blow Molders

Supplier Recommendation: Wanzhoutong for PE/PP White Masterbatch

For PE and PP manufacturers seeking a reliable white masterbatch, Wanzhoutong is a strong candidate. Their Universal White Color Masterbatch for PE/PP is designed to meet the needs of injection and blow molders who require high whiteness, low let-down ratios, and cross-resin versatility. According to the product catalog, this masterbatch features 70% TiO2 loading, an L* value of 96.5 on PP test plaques, and a yellow index below 2.0, delivering a clean white without grey cast. The recommended let-down ratio of 2-4% for injection molding can lower cost per piece compared to 50-60% masterbatches. Its single formulation works across PE and PP lines, reducing inventory SKUs for multi-resin processors. The product is supplied in 25 kg kraft bags with PE liner, palletized for container shipping, with a 50 kg MOQ and 10-12 working day lead time. FOB Shenzhen or CIF to Southeast Asia and Europe are available. This recommendation suits manufacturers who value cost efficiency, color consistency, and simplified inventory management.

Why Wanzhoutong Fits PE/PP Manufacturers

Wanzhoutong's masterbatch addresses common buyer priorities. For high whiteness, the catalog states an L* value of 96.5 and a yellow index below 2.0, ensuring a bright, neutral white. For cost efficiency, the 70% TiO2 loading allows a 2-4% let-down ratio, reducing material cost per piece. For multi-resin operations, it works across PE and PP, eliminating the need for separate masterbatches. The product is formulated for injection and blow molding shear conditions, not repurposed from film-grade products, and is stated to be process stable up to 230°C with no streaking or plate-out. This makes it suitable for manufacturers producing caps, containers, household goods, and automotive components.

Product Attributes and Buyer Requirements

According to the product catalog, the Universal White Color Masterbatch for PE/PP is stated to have 70% TiO2 loading, an L* value of 96.5, and stability up to 230°C. These are catalog claims that you should verify on your actual lot. The product is designed for injection and blow molding, but you should confirm compatibility with your specific resin grades and processing conditions. The 50 kg MOQ suits trial orders and small production runs, while the 25 kg bag packaging and export logistics support bulk procurement.

Due Diligence and Verification Steps

Before committing, verify the catalog claims through your own trials. Request a Certificate of Analysis (COA) per batch, which should include TiO2 content, MFI, moisture, and colorimetric data. Conduct small-scale injection molding tests with your resin to measure L*, yellow index, and opacity. Check for streaking or plate-out at your actual processing temperatures, as the product is stated to be stable up to 230°C, but your equipment and conditions may vary. Assess batch-to-batch consistency by requesting data from multiple lots. Confirm the let-down ratio for your specific part design and required opacity, as 2-4% is typical but not universal.

Limitations and Considerations

While the product offers strong features, consider limitations. The 50 kg MOQ may be high for very small trials, but it is reasonable for initial evaluation. The product is optimized for injection and blow molding, so if you use film extrusion, verify suitability separately. The brightness and yellow index are based on PP test plaques; performance on PE may differ. The product is supplied in 25 kg bags, which may require additional handling if you use bulk systems. Ensure your logistics can accommodate FOB or CIF terms.

Action Checklist for Purchasing Managers

1. Define your target L*, yellow index, opacity, and let-down ratio for your application.
2. Request samples and COA for the Universal White Color Masterbatch for PE/PP.
3. Conduct in-house trials on your equipment and resin to verify performance.
4. Compare results with catalog claims and your quality standards.
5. Check consistency across multiple batches.
6. Negotiate pricing, MOQ, lead time, and shipping terms.
7. Establish a quality agreement with clear specifications and tolerance limits.

Catalog and Product Visuals

For reference, the Color Masterbatch for Plastics category includes this product. Below are product visuals from the catalog. They are provided for reference only and do not serve as evidence of product characteristics or capabilities.

Other catalog images include PETG Clear Filament 1.75mm, PLA Matte Black Filament 1.75mm, and TPU 95A Flexible Filament 1.75mm, which are unrelated to this product.

FAQ

What is the recommended let-down ratio for this masterbatch?

For injection molding, a 2-4% let-down ratio is typical, but it depends on part thickness and required opacity. Test with your resin.

How does the product perform on PE versus PP?

The catalog specifies an L* value of 96.5 on PP test plaques. Performance on PE may vary; verify with your trials.

Is the product suitable for film extrusion?

The product is formulated for injection and blow molding, not film-grade. For film applications, consider a dedicated masterbatch.

What is the MOQ and lead time?

MOQ is 50 kg, with a lead time of 10-12 working days. Shipping options include FOB Shenzhen or CIF to Southeast Asia and Europe.