Overmolds are created when two or more, different materials are combined into a single part. Overmolding is typically done to:

  • Protect and simplify the product

  • Improve the appearance of the product

  • Make the component water resistant

  • Reduce the need for rings and seals

  • Fix sealing elements

  • Alter the part's appearance for design, safety or identification

  • Enhance durability by adding strain relief and decreasing stress on internal components


Often this includes covering an existing part with an additional material. For example, TPE (Thermoplastic Elastomer) can be molded onto a rigid plastic-coated wire using heat, pressure and liquid silicon to seal the parts connectors. Overmolding can also add required functional elements to a finished part. Depending on the material used for the overmolding, some of the more specific overmolds purposes include:

  • Sealing connectors onto wire

  • Adding strain relief

  • Enhancing grip

  • Improving handling comfort

  • Improving the look and feel

  • Changing texture or color

  • Streamlining appearance


DECA Manufacturing has equipment to handle your overmolding requirements:

  • Equipment sized for 10x10 molds

  • 30 ton splice mold machine

  • Vertical injection molder (made specifically for splicing and overmolding)


DECA has access to the materials, tools and expertise to build the customized products your application requires and can acquire the specialized connectors or military spec components required for your finished product. By using DECA to fabricate components which match your specifications you can focus your manufacturing processes and expertise on other work. Simplifying and improving your product designs can also lower overall your production costs.


 To complete your overmolding projects we need the following information:

  • Prints, drawings or schematics

  • Bill of materials (BOM)

  • Approved vendor list (AVL)

Testing and quality control

All our products, including wire leads, are tested using the Cirris System to make sure the products function to the required level.  Learn more about our commitment to quality

What can we overmold for you?


We have the capacity and versatility to handle your next over molding job. Contact us today so we can plan for your next project.


Tel:  419-884-0071


Mon - Fri: 6:30am - 5pm, EST

Local & Commited to Quality

As your one-stop, local source for electronic cable assemblies and wire harnesses, we do the specialized work that can’t be automated.

You can count on us for quality stock, dependable shipping, and flexibility that meets your timeline, not ours.

ISO Certifiied: 9001:2015

Our Services

  • LinkedIn Social Icon
  • Instagram
  • Facebook

Visit our Facility 

300 South Mill Street, 
Lexington, Ohio  44904 USA

© 2020 DECA Manufacturing, LLC