Founded in 1951, Westlake Plastics converts more than 20 types of thermoplastic resin into semi-finished shapes for demanding applications. From Pennsylvania production facilities, the company serves customers worldwide and is particularly experienced in regulated fields such as aerospace, life sciences and semiconductor manufacturing. Its history includes early contributions to Hula Hoops, while its current work includes custom material development and specialized shapes for small prototype lots through high-volume production.
ISO 9001:2015
certification
ISO 13485:2016
certification
Westmoreland Plastics CompanyFor more than 50 years, Westmoreland Plastics Company has manufactured American-made thermoset molded components in Latrobe, Pennsylvania, serving applications from aerospace to medical devices. The company also designs and re-engineers molds, offers thermoplastic molding through selected manufacturing partners, and finishes close-tolerance parts with lapping and fine grinding. Its quality system is certified to ISO 9001:2015, and its thermoset injection-molding experience dates to 1976.LATROBE, PA
Allegheny Performance PlasticsSince 1936, Allegheny Performance Plastics has built its reputation around solving difficult polymer engineering problems in Pennsylvania. The company is known for high-temperature injection molding for demanding aerospace, automotive and space applications, with more than 100,000 parts in low Earth orbit. Its Meadville expansion now extends that precision work into medical manufacturing.326199LEETSDALE, PA
Mold-A-Matic Corp. (MAMCO Precision Molding)Founded in 1964, Mold-A-Matic Corp. operates as MAMCO Precision Molding, a long-established American plastics manufacturer serving customers with demanding engineering requirements. Its more than 40,000-square-foot facility has built 1,904 molds and supports custom work for sectors such as medical devices and aerospace, while the company is also exploring hemp-based plastics.ONEONTA, NY
Westar Plastics LLCBryan, Ohio’s Westar Plastics LLC is a custom injection molder that turns thermoplastic materials into production parts, with more than 35 years of experience behind its work. Founded in 2005, the company also develops proprietary products such as Pool Netr and Leaf Netr, alongside components made for other manufacturers. Westar Plastics is ISO 9001:2015 certified and supports both short production runs and long-term programs.BRYAN, OH