Fillers are essential additives in plastic compounding. They help reduce production costs, improve mechanical properties, and tailor the performance of thermoplastics like PP, PE, PVC, and EVA.

Most Common Plastic Fillers:

• Calcium Carbonate (CaCO₃): A cost-effective filler widely used to improve stiffness, dimensional stability, and surface finish. It’s commonly used in PVC pipes, films, and injection molding.

• Talc Powder: Offers excellent thermal stability and enhances impact resistance. Ideal for PP and PE plastics used in automotive and household goods.

• Glass Fiber: Used as a reinforcing filler to improve strength and heat resistance in engineering plastics.

• Silica and Kaolin: Improve chemical resistance and act as anti-blocking agents in film applications.

Why Use Fillers in Plastics?

• Lower raw material cost

• Improve rigidity or impact strength

• Enhance heat resistance or flame retardancy

• Customize surface finish and processability

Choosing the right plastic filler depends on the final product’s application, regulatory requirements, and processing method. Reliable filler suppliers can also offer customized grades for better performance.