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Riverside Plastics, Inc. is a custom injection molder of thermoplastic resins. 

Custom injection molding of commodity and engineering resins

Full-service toolroom for the production and maintenance of molds

Experienced and knowledgeable staff

ISO 9001:2015 certification

Welcome to Riverside Plastics, Inc., a family-owned and -operated leader in the thermoplastic injection molding and tooling industry for more than 40 years. Known by our customers for our outstanding service and Midwest values, we have the knowledge and experience it takes to move a project from concept to launch on time and at a competitive price.  
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Riverside Plastics, Inc. | Serving Industry Since 1969