The Overmolding Process
Overmolding is a multi-step injection molding process where two or more materials are layered to create a single, integrated product. The process begins by molding a rigid base component—known as the substrate—from a material like plastic.
This substrate is then placed into a second mold, where a softer material, such as silicone or a thermoplastic elastomer (TPE), is molded over, onto, or around it. The result is a seamless chemical and mechanical bond between the materials, producing a finished part with enhanced functionality, durability, and aesthetics.
Plastic Overmolding
We specialize in plastic-on-plastic overmolding to create sophisticated parts with unique characteristics. This process allows for the combination of rigid and flexible plastics, adding soft-grip handles to tools, ergonomic features to consumer products, or colored accents for branding.
By selecting compatible thermoplastics, we ensure a robust molecular bond that results in a durable, single-piece construction ready for demanding applications.
Silicone Overmolding
Silicone overmolding offers unparalleled performance for products requiring flexibility, biocompatibility, and resistance to extreme temperatures. We commonly overmold liquid silicone rubber (LSR) onto plastic and metal substrates to create soft, non-slip surfaces for medical devices, waterproof seals for electronics, and safe, durable components for infant care products.
Our expertise in silicone ensures a superior bond and a high-quality finish for your most critical parts.
Specialized Overmolding for Electronics
Protecting sensitive electronic components from moisture, dust, and impact is critical for product reliability. Our silicone overmolding services provide a robust solution for encapsulating circuit boards, cables, and sensors. This process creates a watertight, vibration-resistant seal that significantly enhances the durability and lifespan of electronic devices. Whether for consumer gadgets or industrial equipment, we can design an overmolding solution that meets your exact specifications for protection and performance.
By selecting compatible thermoplastics, we ensure a robust molecular bond that results in a durable, single-piece construction ready for demanding applications.
Explore Our Overmolding Resources
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