Overmoulding & Insert Moulding

Our rapid overmoulding and insert moulding processes produce custom prototypes and on-demand production parts in as fast as 15 days. We use aluminium moulds that offer cost-efficient tooling, producing parts from a range of thermoplastic and liquid silicone rubber materials.

 

We offer a number of secondary moulds and tooling services to support your project.

How It Works

With overmoulding, the production of the substrate parts is a standard injection moulding process involving an aluminium mould with no heating or cooling lines running through it. Cycle times are a bit longer, which allows our moulders to monitor fill pressure, cosmetic concerns, and the basic quality of the parts.

When the total run of substrate parts are moulded, overmould tooling is then assembled to the press. The substrate parts are placed by hand into mould where each part is overmoulded with either a thermoplastic or liquid silicone rubber material.

Insert moulding is a similar process but instead uses a preformed part—often metal—that is loaded into a mould where it is then overmoulded with plastic to create a final component. When the run is complete, parts are boxed and shipped shortly thereafter.

 


injection moulding icon

25 to 10,000+

Shipped in 15 days or less

 

 

Best For:
  • on-demand production
  • bridge tooling
  • pilot runs
  • rapid prototyping

Overmoulding Materials and Inserts

We stock a range of thermoplastic and LSR materials for overmoulding that are suitable for various part applications and industries. Customer-supplied metal inserts are also accepted.

 

VIEW MATERIALS

Design Guidelines

Our basic guidelines for overmoulding and insert moulding include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

 

VIEW GUIDELINES
press operator examines liquid silicone rubber part

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