Overmoulding Explained
Overmoulding is a manufacturing process where one material is molded over or around another material, creating a multi-layered or composite part. This process is commonly used in injection molding and involves a primary material (called the substrate ) being combined with a secondary material (called the overmold ) to enhance functionality, aesthetics, or ergonomics. Key Features of Overmoulding Materials Used : Substrate : Typically a rigid material like metal, hard plastic, or thermoplastic. Overmold : Usually a softer, more flexible material such as rubber, silicone, or thermoplastic elastomer (TPE). Applications : Adding grip or texture to handles (e.g., tools, toothbrushes). Creating seals for water-resistant or airtight parts. Providing vibration damping or insulation. Improving appearance or colour contrast . Advantages : Combines the properties of two materials into one part. Reduces assembly steps and potential weak points from adhesives or fasteners. Improves dura...