Precision Insert Overmolding Capabilities

Engineered Composites Incorporated (ECI) provides insert molding and overmolding services that enhance and expand conventional compression molding capabilities. By combining additional components into a single, high-strength part, we help our customers reduce product complexity and improve durability, while simultaneously driving down total production costs – all within a single, seamless operation.

Insert and Overmolding Production Capabilities:

What sets ECI apart is not just our equipment or press capacity, but our comprehensive approach to contract manufacturing. Our engineering team is involved from the start, collaborating with our customers to design for manufacturability and select the optimal material pairings to ensure optimized bond strength, dimensional stability, and long-term durability.

  • 20+ presses ranging from 50 to 4,000-ton capacity
  • 4,000 metric ton press with 14′ x 8-9′ platen envelope
  • 12 industrial robots for secondary operations
  • 9 CNC machining centers for precision finishing
  • 3D scanning technology for quality verification

Combined Material Integration for Superior Molded Parts

Insert molding and overmolding allow ECI to combine additional unique design opportunities with advanced polymer materials. We commonly embed high-strength metal inserts into molded plastic parts to achieve substantially improved durability. Threaded metal inserts enable reliable and seamless component integration, streamlining downstream assembly operations.

With overmolding, we can integrate or encapsulate one thermoplastic material with another. We employ overmolding to achieve a wide range of unique mechanical properties, such as soft, ergonomic materials molded over rigid plastics or shock-resistant protective encapsulations. Essentially, we can deliver stronger, lighter, and/or more functional components that meet our customers’ complex end product requirements.

Optimized Product Solutions for Your Industry and Application:

  • Aerospace and Defense – High-strength components with structural enhancement, including embedded fasteners, field assembly features, EMI shielding, etc. Ergonomic handling features for tools, communication devices, and other MIL-spec equipment.
  • Construction and Architecture – Overmolded hardware interfaces and metal reinforcement elements integrated into composite structural panels and building system components.
  • Marine and Boating – Corrosion-resistant plastic assemblies with seals and grips designed to withstand constant exposure to saltwater, vibration, and thermal cycling.
  • HVAC – Integrated brackets, housings, and insulation components which combine structural integrity with unique specifications for thermal and/or flow performance.
  • Automotive and Transportation – Functional parts with overmolded bushings, grommets, and soft-touch surfaces, enhancing both performance and passenger comfort while reducing assembly time for manufacturers.

Superior Quality Insert Molded and Overmolded Parts:

  • Certified to ISO 9001:2015 standards and UL E495715 traceability requirements
  • World-class quality with zero defect focus
  • Near 100% on-time delivery performance
  • PPAP process capabilities for automotive requirements
  • Flexible quality procedures tailored to customer specifications

Custom Insert Molding and Overmolding Solutions at ECI

ECI strives to produce the highest quality overmolded and insert-molded products possible. Backed by more than three decades of experience in manufacturing custom composites across industries, our team knows what it takes to optimize your products through material combinations – whether it’s increasing structural integrity, improving vibration resistance, or reducing assembly time.

Get in touch to discover how ECI’s insert molding and overmolding services can expand your product possibilities.