Soft Rubber, Hard Plastic Injection Overmolding Process of Injection Molding

Soft Rubber, Hard Plastic Injection Overmolding  Process of injection molding

What is overmolding?

overmolding,combining materials through molding efficiency

overmolding allow us to mold plastics into or around existing or pre-molded items. This can include combining insert molding or overmolding using parts made of the same material—or different materials that include aluminum, brass, steel, stainless steel, copper, and more.

Overmolding from WISHMOULDS involves the precise plastic injection molding of one material over a second material. For over-molding success, knowledge of material compatibility is crucial

Why you need injection overmolding ?

1. When a specific design requires combining multiple plastic materials into one finished part, the cost-effective process known as overmolding may be the solution you need.
2. Overmolding is a good choice if you want to mold a rubber piece/TPE,TPR onto a piece of hard plastic.
3. Examples of this process would include:Soft-grip pens,Disposable razor handles

Overmolding process:

• A two step process, the overmolding process uses a pre-formed plastic part placed into a mold
• The second material is then injected into the mold, covering all or part of the first part

overmolding benefits from WISHMOULDS include:

• Reduced Assembly Time and Cost
• Reduced Part Size and Weight
• Increased Completed-Part Accuracy and Performance Reliability
• Expanded Part Design Flexibility

overmolding parts reference

The following items are for reference only to give examples of our work and bespoke designs

Our tooling engineers can help design and commission prototype and production tooling for all the plastic processes we offer.

Our injection mold designs can incorporate advanced tooling technologies such as conformal cooling, hot runners, sequential valve gates and multi-component cavities.

More about wishmoulds 

Mould Material Feature

  Flow chat to order a mould & plastic production