Gas Mask Custom Plastic Injection Molding Michigan Company


Seabrook Plastics utilizes a scientific molding process that allows us to manufacture parts with tolerances as low as +/-.001”. Quality matters to our customers and to us.

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About seabrook plastics

Our Dedication Increases Your Competitive Advantage.

Seabrook Plastics continues to achieve zero PPMs nearly every month due to our quality-focused performance, which is uncommon in the industry. Each project begins with its own Seabrook Plastics Project Validation process, featuring APQP and PPAP procedures that engage our engineering, manufacturing, scheduling, tooling maintenance, and quality assurance departments to ensure you receive parts that meet or exceed your expectations.

Seabrook Plastics is a cutting edge custom injection molding company dedicated to complete customer satisfaction.

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Latest updates

News, thoughts, and happenings.

  1. Seabrook Plastics adds larger presses and expands capabilities

    Seabrook Plastics adds larger presses and expands capabilities Since 1994 when Seabrook Plastics was founded by Serge Cousin, the company originally focused on molding smaller precision parts with press sizes ranging from 35…

  2. In-Mold Labeling and In-Mold Decorating

    In-Mold Labeling and In-Mold Decorating Let’s begin with a definition: In-mold labeling (IML) or in-mold decorating (IMD) is a process of decorating or labeling injection molded plastic parts or components during the plastic…

  3. Seabrook Plastics breaks ground for facility expansion

    Seabrook Plastics broke ground for its manufacturing facility expansion on March 27, 2017. The addition will increase Seabrook’s manufacturing space by 25% and is expected to be dedicated to larger tonnage presses.  Currently,…