Heritage Plastics has focused on mineral-based polyolefin compounds and concentrates since 1982. Our unique compounding capabilities were developed to produce the highest quality concentrates specifically formulated for a wide variety of applications.  As the leading manufacturer of calcium carbonate concentrates, we have earned global recognition for our product quality and consistency as well as our outstanding customer service, technical support, and application development.  Our calcium concentrates are widely known for boosting performance in a wide variety of applications - blown film, blow molding, thermoforming, extrusion coating, and injection molding, and are quickly becoming the product of choice across the world. Commercially, we also offer other mineral filled concentrates as well as many unique custom formulations that are developed by partnering with our customers to design products targeting performance for specific applications.