Over-Molding: Advanced Multi-Material Manufacturing Solutions
Over-mold, or over-molding, is a manufacturing process that involves the injection molding of one material over another material to create a finished product with multiple layers. The process involves molding a base material, such as plastic or metal, and then molding a second material over the base material to form a final product with two or more layers.
Over-molding is a versatile manufacturing process that can be used to create products with multiple layers, colors, and properties. The process is widely used in various industries to create products that are durable, attractive, and functional.
Advanced Over-Molding Applications
At Derco Mold, we specialize in complex over-molding solutions that combine technical precision with innovative material science. Our capabilities include:
Medical Device Components: Creating soft-touch grips for surgical tools with antimicrobial TPE over-molds
Consumer Electronics: Producing waterproof seals and vibration-dampening layers for wearable devices
Automotive Parts: Manufacturing multi-density control knobs with rigid ABS cores and elastomeric overlays
Precision Engineering Expertise
Derco Mold maintains industry-leading tolerances of ±0.01mm for molds and ±0.02mm for molded parts. Our advanced capabilities include:
Multi-shot molding for complex geometries
Insert molding with metal and plastic combinations
Micro-over-molding for components under 5mm in size
Material Innovation
We've developed specialized material combinations for superior performance:
High-bond TPE/PP systems for permanent adhesion
Chemical-resistant over-molds for industrial applications
FDA-compliant material pairs for food contact
Quality Assurance Process
Every over-molded part undergoes rigorous testing:
Bond strength verification (ASTM D903)
Dimensional inspection with CMM
Environmental stress testing
Functional performance validation
Why Choose Derco Mold for Over-Molding?
25+ years of specialized over-molding experience
Complete in-house design and tooling capabilities
Rapid prototyping to production scaling
Global certification compliance (ISO 13485, IATF 16949)
Our team works closely with clients from initial design through full production, ensuring optimal material selection and manufacturability for every over-molded component. Contact us today to discuss your project requirements.