Table of Contents
- What is Filler Masterbatch?
- Composition and Materials Used
- Types of Filler Masterbatch
- Applications of Filler Masterbatch
- Advantages of Using Filler Masterbatch
- Charming Masterbatch: A Trusted Global Supplier
- Summary Table
- Reference Links
What is Filler Masterbatch?
Filler masterbatch is a type of concentrated additive used in plastic manufacturing that consists of a high percentage of filler materials such as calcium carbonate (CaCO₃), talc, or other minerals. These fillers are blended with a polymer carrier resin, such as PP, PE, or PET, and a small amount of dispersing agent to create a pelletized compound.
The primary purpose of filler masterbatch is to reduce raw material costs, improve mechanical properties, and enhance processing characteristics without significantly affecting the appearance or functionality of the final plastic product.

Composition and Materials Used
Filler masterbatch typically consists of the following components:
- Filler material: Calcium carbonate (CaCO₃), talc, barium sulfate, etc.
- Carrier resin: Polypropylene (PP), Polyethylene (PE), Polyethylene Terephthalate (PET), or Polyamide (PA6)
- Dispersion agent: Enhances the distribution of filler particles in the base resin
- Processing aids: Improve flow and extrusion properties
Each of these components plays a role in ensuring uniformity, mechanical integrity, and compatibility with the base polymer matrix.
Types of Filler Masterbatch
Filler masterbatch is classified based on filler type and application-specific resin carriers. Below are the common types:
By Filler Material
- Calcium Carbonate (CaCO₃) Filler Masterbatch: Most widely used; improves stiffness and reduces production cost
- Talc Filler Masterbatch: Enhances heat resistance and dimensional stability
- Barium Sulfate Masterbatch: Offers excellent gloss and improved density
By Polymer Carrier
- PP Filler Masterbatch: Ideal for injection molding, blown film, and thermoforming
- PE Filler Masterbatch: Used in shopping bags, garbage bags, and plastic sheets
- PET Filler Masterbatch: Suitable for polyester yarns and films
- PA6 Filler Masterbatch: Used in engineering plastics and automotive applications
Applications of Filler Masterbatch
Filler masterbatch is used across a wide range of plastic manufacturing processes:
Packaging Industry
- Shopping bags
- Garbage bags
- Stretch films
Plastic Molding
- Injection molded products like household items
- Thermoformed trays and containers
Textile Industry
- Non-woven fabrics
- Polyester yarn for clothing and industrial textiles
Automotive Sector
- Interior parts made with reinforced PP or PA6 masterbatches
Construction Materials
- Pipes, cables, and films with increased stiffness and reduced costs
Advantages of Using Filler Masterbatch
Manufacturers prefer filler masterbatch due to its wide range of benefits:
- Cost Reduction: Filler materials are significantly cheaper than polymers
- Improved Processability: Enhances extrusion and molding efficiency
- Enhanced Mechanical Properties: Increases stiffness, impact resistance, and heat deflection
- Better Surface Finish: Provides gloss and smooth surface appearance
- Environmental Benefits: Lower energy consumption during processing
Charming Masterbatch: A Trusted Global Supplier

Charming Masterbatch is a prominent masterbatch manufacturer renowned for its consistent quality and technological innovation. With advanced twin-screw extruders imported from Germany and decades of expertise in pigment dispersion, Charming has positioned itself as a leader in functional and color masterbatch solutions.
Global Reach
- Strong presence in China’s domestic market
- Exports to Europe, South America, Southeast Asia, the Middle East, and North Africa
Core Offerings
- PET application
- PP application
- PET application
- PP application
- PA6 application
- PE application
- PET base
- PP application
- PA6 application
- PET application
Technical Support
Charming doesn’t just supply products—they offer comprehensive technical assistance and collaborative R&D support to help clients:
- Develop new product lines
- Resolve production issues
- Optimize material formulation
Their philosophy of “growing together with customers” has earned them long-standing partnerships across continents.
Summary Table
Key Aspect | Details |
---|---|
Definition | Plastic additive made of fillers, polymer resin, and dispersing agents |
Main Fillers | Calcium carbonate, talc, barium sulfate |
Common Carriers | PP, PE, PET, PA6 |
Applications | Packaging, molding, textiles, automotive, construction |
Benefits | Cost saving, improved properties, better finish, eco-friendly |
Charming Masterbatch | High-quality supplier with technical support and global reach |