NUOXIN Introduces Innovative PP Filler Masterbatch Series Powered by High-Hardness Calcium Carbonate — Usable Both as Raw Material and as a Conventional Filler
NUOXIN, a trusted name among global masterbatch manufacturers, is proud to announce the launch of its upgraded PP Filler Masterbatch Series (Models PP-2/3/4/5). This new generation of filler masterbatch is engineered with an innovative formula using high-hardness calcium carbonate, enabling dual-function use: as a full raw material for direct injection molding or as a filler masterbatch added at various ratios.
This breakthrough offers injection molding factories greater production flexibility, stronger end-product durability, and significant material cost savings—making it an excellent choice for disposable lunch boxes, household products, and other daily-use injection-molded items.
A Breakthrough in Material Design: Dual Application for Modern Injection Molding Needs The new PP filler masterbatch series introduces a major innovation in the industry:
✔ Can Replace Conventional PP Resin
Certain models (PP-4, PP-5) are strong enough to be used directly as a substitute for virgin PP.
This allows factories to:
Reduce material costs
Avoid complex blending procedures
Maintain stable molding and consistent quality
✔ Can Be Used as a Traditional Filler Masterbatch
When blended with virgin PP at a chosen ratio, it provides:
Improved rigidity
Stronger dimensional stability
More economical material formulation
This dual-use capability sets the product apart from conventional filler masterbatches on the market.
Superior Hardness — Proven Through Real Customer Testing
One of the most recognized advantages of this new product series is its exceptional hardness and toughness.
A customer who tested the new product shared their real experience:
“We were impressed by its strength. To test it, we even tried biting the pellets— they hardly broke. The hardness is far better than ordinary filler materials.”
This feedback confirms that NUOXIN’s upgraded formula delivers outstanding mechanical performance and excellent resistance to cracking or powdering during processing.
Recommended for Disposable Containers & Daily-Use Injection Products
Thanks to its rigidity and cost-performance advantages, the PP-2/3/4/5 series is ideal for:
Disposable lunch boxes and food containers
Household plastic items
General-purpose injection molding products
Light-duty structural parts
Packaging components
The calcium carbonate formulation also improves part stiffness, helps control shrinkage, and enhances surface appearance.
Product Highlights
High mechanical strength — parts are more rigid and far less brittle
Excellent dimensional stability
Clean dispersion for smooth surface finish
Flexible usage: direct injection OR blended filler
Reliable processing on standard PP injection machines
Product Line Overview
| Model | Main Features | Best For |
|---|---|---|
| PP-2 | Medium filler content; easy processing | Daily-use products, thin-wall items |
| PP-3 | Higher stiffness; smooth finish | Household containers, food-grade items |
| PP-4 | High hardness; direct molding capable | Disposable lunch boxes, trays |
| PP-5 | Cost-optimized; excellent toughness | Mass-production injection goods |
The release of this new PP filler masterbatch series enhances NUOXIN’s role as a competitive plastic masterbatch supplier offering practical, customer-driven solutions.
The company continues to support injection factories worldwide with dependable quality, stable supply, and advanced formulation expertise.
A NUOXIN spokesperson commented:
“Our goal was to create a filler masterbatch that does more than lower cost — we wanted something strong, practical, and flexible. The ability to use it as both raw material and filler gives our customers a real competitive edge.”


