Heritage Plastics Inc. develops and manufactures calcium carbonate concentrates for a wide variety of plastic resins and applications. Located in Picayune, Miss., its concentrates are designed to help offset any rising resin costs and offer proven advantages for minimizing the overall carbon footprint of the finished product versus a "resin only" system. The company's expertise is highly filled mineral based concentrates using its Minapol Additive Technology. Its calcium carbonate concentrates (masterbatch) boost the performance of blown film, blow molding , blow molded pipe, thermoforming, polypropylene, polystyrene, extrusion coating and injection molding with the use of some of its brands such as HM10, PolyMax, HiCal, StryroCal and PolyCal.
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