Plastic Overmolding Process Guide You Must Know

Overmolding is the process of molding a part with two or more different materials. It’s one of the trending manufacturing methods in the plastic molding industry.

What Is Overmolding?

Overmolding is a plastic manufacturing process where two materials ( Plastic or Metal) are bonded together. The bonding is usually chemical bonding, but sometimes mechanical bonding is integrated with the chemical bonding. The primary material is called Substrate, and a secondary material is called Subsequent

What is Plastic Overmolding Process?

Overmolding is applied to various products and is a vital part of plastic processing. The first material in the process is often called a substrate.

Let’s take another example of a screw with a T -handle. A T-handle can be attached with additional screws, but a consumer would be much happier if it is already built-in on the screw.

To do that, the screw is attached to a mold directly, and T-handle is formed chemically or mechanically.

Overmolding alters the physical properties of any part depending on your prospective customer’s needs.

The material used for the overmold will play a vital role in deciding the functionality of the overmold. It can be hardened for increased durability and softened for enhanced grip.

Over Molding Case Study

Our main services: injection molding, plastic products, plastic parts, mold design and development, mold making, product assembly. The main product industries currently produced include electrical plastic parts, toy plastic parts, machinery plastic parts, industrial and agricultural plastic parts, plastic parts for daily necessities, plastic parts for health care appliances, plastic parts for automobiles and other plastic products.