One of the primary benefits of using fillers in plastics is cost reduction. By incorporating inexpensive materials such as calcium carbonate, talc, or clay, manufacturers can significantly decrease the overall production costs without compromising the structural integrity of the product. This is particularly important in industries where price competition is fierce, such as packaging and consumer goods. For example, a high-density polyethylene (HDPE) container may utilize a significant percentage of fillers to maintain an affordable price while still delivering adequate performance.