Custom Molds for Polystyrene Injection Molding
Polystyrene is a widely used thermoplastic valued for its light weight, moldability and dimensional stability. CDM Tool & Mfg. designs and manufactures custom polystyrene injection molds built for accurate parts, consistent production and long-term tooling performance. Whether your project requires prototype tooling, short-run production or high-volume mold manufacturing, our team builds every mold around your exact part requirements.
Bring your plastic part designs to life with CDM Tool & Mfg. Request a project estimate today.


Benefits of Polystyrene for Injection Molding
Polystyrene offers reliable processing characteristics for a wide range of injection-molded plastic components. The material flows well through mold cavities, supports detailed part features and can be used for rigid and specialty applications. Its balance of affordability, clarity, stiffness and ease of molding makes polystyrene a practical choice for products requiring repeatable dimensions and efficient production.
Where Polystyrene is Commonly Used
- Medical trays
- Laboratory products
- Food packaging
- Disposable containers
- Consumer products
- Electronics housings
- Display components
- Appliance parts
- Retail packaging
- Protective inserts
- & more
Tailored Polystyrene Injection Mold Design
Successful polystyrene injection molding starts with a mold design built for the material, the part geometry and the production goal. CDM Tool & Mfg. brings decades of mold design experience to every project, helping manufacturers avoid costly production issues before tooling begins. Our design team considers part complexity, gate location, wall thickness, cooling strategy and ejection requirements to create molds capable of producing dependable polystyrene parts from the first run forward.
Precision CNC Machining for Polystyrene Plastic Injection Molds
High-quality polystyrene plastic injection molds depend on precision machining, detailed inspection and skilled toolmaking. CDM Tool & Mfg. operates an advanced CNC shop equipped to manufacture mold tooling for projects of varying size, scope and complexity. From close-tolerance mold components to complete production tools, our machinists produce accurate tooling designed to support efficient molding cycles and consistent part quality.
Our in-depth machining capabilities include:
Polystyrene Injection Molds for Companies Nationwide
CDM Tool & Mfg. provides high-quality polystyrene injection molds to companies in Wisconsin, Illinois, Michigan, Minnesota, Iowa, Missouri, Ohio, Indiana, North Carolina, South Carolina, Alabama, Georgia, Kentucky and beyond. Contact us today to request a quote or explore more plastic injection mold materials we’ve developed molds for.