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The History of McDonald Plastic Molding
McDonald Plastic Molding has a proud history of manufacturing plastic injection molded components for a wide variety of OEM customers spanning several industries. It begins with two companies and a family that has been dedicated to serving customers since 1856.


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 three manufacturing facilities in Southwest Wisconsin – Cuba City, Monroe, and Darlington dedicated to serving their customers.
The future is bright for McDonald Plastic Molding. With a proud family tradition since 1856, we are ready to serve any customers’ needs and create innovative specialty solutions. Thank you for being part of our growing company history and turning to us to be your partner. After all, you, our customer, are the boss, and we look forward to serving you!