overmoulded

Overmoulded refers to a manufacturing process where a secondary material is molded over a primary part or substrate. This process is also known as insert molding or two-shot molding, depending on the specific technique employed. The primary part is typically made of a rigid material, such as plastic or metal, and the overmoulded layer is often a softer, more flexible material like thermoplastic elastomer (TPE) or rubber.

The overmoulding process offers several advantages. It can significantly improve the ergonomics and grip of a product by adding a soft-touch coating. It also enhances durability and shock absorption, protecting the underlying substrate from damage. Furthermore, overmoulding can provide improved sealing against moisture and dust, making it suitable for electronic enclosures or outdoor equipment. Aesthetic enhancements are also achievable, allowing for multi-color or multi-material designs.

Common applications for overmoulded components include tool handles, automotive interior parts, consumer electronics, medical devices, and sporting goods. The process typically involves placing the primary part into a mold cavity and then injecting the secondary molten material around it. The two materials bond together, creating a single, integrated component. Careful selection of compatible materials is crucial for successful adhesion and performance.