AQA Product Design Practice Exam – Complete Prep with Study Guide & Practice Test

Fillers in plastic production serve key roles, particularly in reducing cost and increasing the strength of the final product. When fillers are added to plastic formulations, they can effectively lower the amount of more expensive polymers required, which results in reduced production costs.

Moreover, fillers such as talc, calcium carbonate, and glass fibers can enhance the mechanical properties of the plastic, leading to improved strength and rigidity. This is particularly valuable in applications where the durability of the material is critical. By reinforcing the plastic, fillers contribute to a product that can withstand greater stress and strain without deforming or breaking.

While fillers may also influence other properties of plastics, such as color and flexibility, their primary function focuses on cost savings and structural enhancements.