CHARLTON, MA – (11/14/2017) – MTD Micro Molding (, a long-time leader and expert problem solver in micro injection molding for the medical device industry, has made a significant investment to expand their overmolding services. As part of this investment, they recently acquired a new vertical injection molding machine, which has been designed and further customized for higher capacity overmolding.

Overmolding involves two or more materials molded together to become one part, such as molding two plastics together or molding plastic around a metal insert. Because overmolding requires no foreign materials like adhesives, it’s possible to achieve greater part functionality that’s critical to medical devices, like creating a water-resistant seal.

Executive Vice President, Gary Hulecki, said the investment is in response to a growing need for precision overmolding from their customer base. OEMs benefit from precision overmolding by improving shot-to-shot consistency and overall part quality for their medical device components.

Common medical overmolding components that MTD has produced include catheter tips, suturing devices, sports medicine implants, and orthopedic devices where a PEEK polymer is molded over or through metal. A more unusual project was a 5-piece micro assembly device overmolded with Glass Filled LCP (Liquid Crystal Polymer).

MTD Micro Molding is a vertically integrated micromolder with all tooling services located in-house. It currently has 13 molding presses and 31 employees.

Learn more about MTD’s overmolding capabilities.

About MTD Micro Molding

Founded in 1972, MTD Micro Molding custom-crafts ultra-precision molded components that meet the exact requirements of companies in the medical device industry. In-house tooling, unparalleled bioabsorbable molding expertise, ISO 13485 certified systems, state of the art equipment – all under one roof. Our exclusive focus on bioabsorbable and drug delivery medical micro molding ensures successful delivery of complex custom products that nobody else can produce.

To learn more, visit or come tour our facility in Charlton, Mass.

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