What is overmolding?



Overmolding is a manufacturing process that integrates two or more parts together. Injection molding is the most common process used to create over-molded products. It involves injecting melted plastic into a mold, where it then takes on the shape of the cavity. After the plastic has cooled and hardened, the mold is opened and the product is removed. Overmolding is the process of molding two or more parts together to create a single product. It is a manufacturing process that combines two or more separate parts into a single unit, typically by injection molding. In most cases, overmolding is used to improve the strength and durability of the final product. Additionally, it can be used to create a product with increased water resistance, reduce weight, or improve aesthetics. When done correctly, overmolding can provide major benefits for manufacturers and consumers alike.

What are the benefits of overmolding? 

The two most common types of injection molding are compression andovermolding. In compression molding, the molten plastic is simply forced into the mold cavity. Overmolding is a process in which an already-solid piece of plastic is placed in a mold and then molten plastic is injected over it, forming a single part. There are a few benefits of overmolding that manufacturers should be aware of. 

  • The first benefit is that overmolding can improve the appearance of a product. When two or more parts are joined together, the junction can often be visible and create an aesthetic flaw. 
  • By overmolding, this junction can be hidden and the overall appearance of the product improved. 

  • Additionally, overmolding can improve the performance of a product by making it stronger and more durable. 

How to choose the right plastic injection molding services?

When it comes time to choose a plastic injection molding services provider, there are a few things to keep in mind. The first is to select a company that has experience with the type of plastic you plan to use. The second is to find a provider with a good reputation for quality and timely delivery. And finally, be sure to get quotes from several different companies so that you can compare pricing and find the best option for your needs.

The most important factors are the quality of the products, the lead time, and the price. You should also look for a company that has experience in manufacturing products similar to yours. It is also important to find a company that can provide support after you have placed your order. When you need to produce products in large quantities, using plastic injection molding services is often the most efficient option. However, not all of these services are created equal. Here are three tips for choosing the right supplier for your needs:

  • Make sure the supplier has experience producing the type of product you need.
  •  Find the supplier with a strong track record of quality control.
  • Ask suppliers for references from previous customers.


The material, which is usually plastic, cools and hardens to form the desired object. When an object made from injection molding needs more than one type of plastic, it can be overmolded. This is a process in which two or more molds are used to create a single object.