overmolding"The Benefits of Using Low Pressure Overmolding Versus High Pressure Overmolding

19 Jul.,2024

 

Overmolding is a process where a second material is molded over another material. This technique is commonly used to provide a soft grip on a product, improve the aesthetics of a product, and to add another layer of protection to the product. There are two types of overmolding; low pressure overmolding and high pressure overmolding. In this article, we will discuss the benefits of using low pressure overmolding versus high pressure overmolding.

Low Pressure Overmolding.

Low pressure overmolding, also known as insert molding or potting, is a process where a soft material is molded over a rigid material. This process typically utilizes an encapsulating material, like silicone, that is cured around the inserted component. The benefits of low pressure overmolding include:

1. Reduced Cost.

Low pressure overmolding is lower in cost compared to high pressure overmolding because it has a lower cavity pressure during molding. The materials used in low pressure overmolding are also less expensive than the materials used in high pressure overmolding.

2. Fast Cycle Time.

Low pressure overmolding has a faster cycle time than high pressure overmolding because it requires less cooling time. This can significantly increase productivity and reduce lead time.

3. Good Sealing Properties.

Low pressure overmolding uses a silicone sealant that has excellent sealing properties. This material can protect products from moisture, dust, and other environmental factors.

High Pressure Overmolding.

High pressure overmolding, also known as multi-shot molding, is a process where two or more materials are injected into a mold at different times. The first material is usually a rigid material, while the second material is usually a soft material. The benefits of high pressure overmolding include:

1. Design Flexibility.

High pressure overmolding can create complex designs and shapes that are not possible with low pressure overmolding. It can also combine multiple materials to create unique textures and colors.

2. High-Quality Finish.

High pressure overmolding can create a high-quality finish that looks and feels like one piece. The rigid material provides structure and strength, while the soft material provides a comfortable grip.

3. Durable.

High pressure overmolding is more durable than low pressure overmolding because it has a higher cavity pressure during molding. This creates a stronger bond between the two materials and reduces the risk of separation or cracking.

Conclusion.

Both low pressure overmolding and high pressure overmolding have their benefits. Low pressure overmolding is ideal for simple designs that require good sealing properties and a quick turnaround time. High pressure overmolding, on the other hand, is ideal for complex designs that require a high-quality finish and durability. Ultimately, the choice between the two techniques depends on the specific needs of the project.

If you are interested in overmolding or would like to learn more about our capabilities, please contact us. As a leading supplier of overmolding solutions, we can provide you with the expertise and support you need to bring your products to life.

Contact us to discuss your requirements of low pressure overmolding vs. high pressure, low pressure overmolding cost, rapid tooling solutions. Our experienced sales team can help you identify the options that best suit your needs.