Plastic Overmolding for Precision Parts

Protection and Performance You Can Feel

Plastic overmolding for small and complex metal parts presents unique challenges. Vertical integration at GGI enables us to maintain strict control over the overmolding process, ensuring that finished parts conform to expected standards.

For metal components at any scale and level of complexity, plastic overmolding helps:

Improve grip, comfort, and ergonomics, especially useful in medical, industrial, or handheld applications

Protect surfaces from wear, corrosion, and environmental exposure

Isolate conductive metal features and improve performance in electronics components

Integrate multiple functions into a single component, eliminating some secondary processes or assembly

Plastic overmolding from GGI reduces the number of manufacturing unknowns, delivering greater value to our customers.

Adding Value with Experienced Partners

Plastic overmolding services are one of the ways our team engineers greater value into our services to help our customers save time and keep costs under control. Because we control the process from the outset, we’re able to manage surface prep, tolerances, material compatibility, and part geometry to reduce the risk of failure or last-mile surprises.

Flexible solutions for high-stakes applications

We specialize in plastic overmolding for small, intricate, and thin-walled components. Our services are tailored specifically to medical device, robotics, and electronic component applications.

Plastic overmold material capabilities:

Polyether ether ketone (PEEK)
Polyphthalamide (PPA)
Thermoplastic elastomers (TPE)
Thermoplastic vulcanizates (TPV)
Thermoplastic polyurethane (TPU)
Polycarbonate (PC)
Acrylonitrile Butadiene Styrene (ABS)
And others

Medical MIM Manufacturer  in North America

Years
in Business

Year Average Customer  Partnership

M+

Annual Parts Production Capacity

1/1

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Supporting Innovation Across Critical Markets

Our integrated, U.S.-based facilities give OEMs a single source partner for complex manufacturing across regulated and performance-driven industries.

Medical Device
Defense & Aerospace
Commercial & Industrial
Electronics & Communications

Partnership Designed to Grow with You

Our connected teams make scaling simple. We help OEMs move seamlessly from concept validation to full-scale production.

Design for Manufacture

We work alongside your engineers to refine part designs, eliminate risk, and prepare for production.

Quick-turn Prototyping

Prototypes are produced quickly and accurately, allowing you to test real parts and move forward with confidence.

Feedstock & Alloy Development

Our in-house team develops specialized metal and ceramic materials that meet your exact performance and regulatory requirements.

Process Validation

Every manufacturing process is verified and documented to ensure repeatable quality and compliance at full production scale.

Project Management

Dedicated project managers maintain open communication and proactive oversight to keep progress on track.

Program Management

Large-scale programs receive continuous coordination between engineering and production, so every detail aligns with your timeline and goals.

What Our Customers Say

“GGI has been a 5-star partner for us. After working with GGI through several projects over 6 years, I have found them to be incredibly responsive, and they have provided us with unparalleled quality on some of the most challenging MIM components. GGI has consistently developed novel ways to design their tooling to meet our demanding specifications on the latest surgical technology.”

Sr. Manufacturing Engineer,

Large Medical Device OEM

“GGI has remained a top-tier supplier long term. The highest levels of responsiveness and professionalism set them apart in support of rapidly changing requirements and extremely dynamic end customer requirements. Much of our success ties directly into these very high levels of support. Continuing thanks to GGI for all the support over all these years.”

Purchasing Manager,

Leading Equipment and Systems Manufacturer

“I wanted also to share that if I am ever asked to rank all of the vendors I have worked with according to responsiveness, achieving goals, communication, skill, and overall medical product knowledge, GGI wins, hands down. It is a pleasure seeing the project turn into a trusted process. Thanks to you both and your team!!!!”

Design Assurance Engineer,

Large Medical Device OEM

“Over the past several years GGI has worked with my project team to develop components for multiple innovative new devices. The complex nature of our designs makes these projects challenging and require a lot of personal attention, crisp communication, and creative problem-solving to meet our project targets of timing, cost, and superior quality. GGI has demonstrated their willingness and ability to deliver in these areas, making them a valued partner for our business.”

Director of Advanced Instruments

Large Medical Device OEM

“GGI’s project management support is the best of any MIM house we have worked with. We are confident when placing a new tooling PO with GGI that we are going to close the project on time. When we get into production, GGI partners with us to continually improve the process and cost over time. We ask GGI to help us compete and they are always there looking for new ways help us to advance.”

Sr. Buyer

Large Medical Device OEM

“GGI rapidly develops complex machined components and assemblies with the highest possible quality. They take on our most challenging parts right from the prototyping stages, support all development efforts and carry them through to production seamlessly. They support our development efforts as if they are part of the internal team and their level of communication is superb.

GGI has been essential to product success and bringing the highest possible quality devices to the customer. They take on real challenges and work to solve them, not only with highly precise machined parts but with a range of processes and capabilities.”

Sr. Design Engineer,

Large Medical Device OEM

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See how our full-service contract manufacturing capabilities can elevate your precision component production and performance.