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Who is McDonald Plastic Molding

In January 2021, A.Y. McDonald took the opportunity to combine the extensive capabilities of the two companies into one customer focused organization. S.K. Plastic Molding, Inc. and Non-Metallic Components, Inc. have become McDonald Plastic Molding with its four manufacturing facilities in Southwest Wisconsin – Cuba City, Monroe, Darlington, and Poynette, dedicated to serve their customers.


McDonald Plastic Molding is known for its engineering capabilities to custom design products and services per the customer’s request. Our patented technology and ability to integrate resources to innovate creative and cost-saving solutions has made us a leader in the field of custom injection molding, engineering, and tooling design.

We believe in serving our customers so well they’ll choose to remain customers for the long-term. If you’re looking for a problem-solving partner like that—a custom plastic molding company that’s ready to tackle even your toughest challenges—let us mold your success.


Here's how we do it:

We ask the right questions and by taking time upfront to ask those right questions, we zero in on what will make even tough projects successful.

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