NUOXIN Introduces Innovative PP Filler Masterbatch Series Powered by High-Hardness Calcium Carbonate — Usable Both as Raw Material and as a Conventional Filler

2025/11/19 14:31

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:

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✔ 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.

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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

ModelMain FeaturesBest For
PP-2Medium filler content; easy processingDaily-use products, thin-wall items
PP-3Higher stiffness; smooth finishHousehold containers, food-grade items
PP-4High hardness; direct molding capableDisposable lunch boxes, trays
PP-5Cost-optimized; excellent toughnessMass-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.”


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