Overmolding & Insert Molding
Custom overmolding and insert molding for cable assemblies providing strain relief, environmental sealing, and connector protection.
Molding Processes
Our overmolding and insert molding capabilities for cable assemblies.
Overmolding
Custom molding over connectors and cables
Insert Molding
Components molded into plastic housings
Strain Relief
Flexible boots and grips for cable protection
Environmental Sealing
IP-rated sealed cable entries
Custom Tooling
In-house mold design and fabrication
Material Options
TPE, PVC, silicone, and specialty compounds
Protection & Performance
Overmolding transforms cable assemblies from basic connections into durable, sealed products ready for harsh environments. Our in-house tooling and molding capabilities deliver custom solutions.
- Custom mold design and build
- TPE and PVC overmolding
- Silicone molding capability
- Multi-shot molding options
- IP67/IP68 sealed assemblies
- Strain relief boots
- Connector backshells
- Logo and branding options

Technical Specifications
Our overmolding and insert molding specifications.
Engineered Protection
From simple strain relief boots to complex sealed connectors, our molding capabilities add the protection and functionality your cable assemblies need for demanding applications.
Strain Relief
Cable flex protection
Sealing
IP67/IP68 rated
Branding
Logo and color options
Custom
Tailored solutions
Overmolding and Insert Molding for Cable Assembly Protection
As a specialized overmolding and insert molding provider, OurPCB delivers custom cable molding for strain relief, environmental sealing, and connector protection. Our in-house tooling capabilities enable rapid mold development for cable assembly and wire harness applications requiring IP67/IP68 ratings.
Material options include TPE (thermoplastic elastomer) for flexibility and grip, PVC for durability and chemical resistance, silicone for high-temperature applications, and polyurethane for abrasion resistance. Shore hardness from 30A to 90A accommodates different flexibility and protection requirements for waterproof cables.
Strain relief molding protects cable-to-connector junctions from repeated flexing and pull stress. Custom backshells and boots match connector geometry for USB cables, HDMI cables, and industrial connectors. Multi-shot molding enables integrated grip textures and color-coded identification.
Our molding capabilities serve marine applications requiring sealed cable entries, automotive engine bay harnesses, and industrial equipment exposed to harsh conditions. Logo and branding can be incorporated into mold designs.
Tooling typically takes 2-3 weeks with expedited options available. Our potting services provide alternative encapsulation for electronics protection. Contact us for overmolding quotes for your cable assembly strain relief and sealing requirements.
Molding FAQ
Overmolding provides strain relief at cable-to-connector junctions, seals cable entries against moisture and dust, adds grip surfaces, and creates custom shapes around connectors. It improves durability and environmental protection.
We mold TPE (thermoplastic elastomer), PVC, silicone, polyurethane, and nylon. Material selection depends on flexibility requirements, temperature range, chemical resistance, and environmental sealing needs.
Yes, our overmolding process can achieve IP67 and IP68 ratings when properly designed. The mold design, material selection, and process control all contribute to achieving reliable environmental sealing.
Simple mold tooling typically takes 2-3 weeks. Complex multi-cavity or multi-shot molds may take 4-6 weeks. We can often expedite for urgent projects. Tooling is designed in-house for faster turnaround.
Need Overmolding Services?
Custom overmolding and insert molding for strain relief, environmental sealing, and connector protection in your cable assemblies.