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Custom Rubber-Plastic Overmolded Parts from China Factory - Reliable Suppliers for Enhanced Functionality and Design
Overmoulded in-vehicle buttons (2K dual-colour keys);
Soft-edge trim for dashboards;
Silicone sealing ring overmoulded onto ECU plastic housing (IP67 rated);
Overmoulded dust-proof rings for cigarette lighters and charging ports.
Frequently Asked Questions
What are the main advantages of 2K dual-colour overmoulded buttons?
2K dual-colour overmoulding integrates two different materials in a single process, ensuring the symbols on in-vehicle buttons are wear-resistant, provide excellent light-blocking capabilities for backlighting, and offer a premium tactile feel.
Why is soft-edge trim preferred for automotive dashboards?
Soft-edge trim enhances the overall interior aesthetics and safety of the vehicle by providing a cushioned surface. It also effectively absorbs vibrations and reduces cabin noise (NVH) caused by parts friction.
How does overmoulding a silicone sealing ring onto an ECU housing ensure IP67 performance?
By overmoulding liquid silicone directly onto the plastic ECU housing, a seamless, high-adhesion seal is created. This eliminates the gaps found in traditional manual assembly, ensuring strict waterproof and dustproof protection up to IP67 standards.
What materials are typical for cigarette lighter and charging port dust-proof rings?
Typically, flexible elastomers such as TPE, TPU, or silicone are used. These materials provide the necessary elasticity, durability, and resistance to wear and environmental factors like dust and moisture.
Are these overmoulded components resistant to extreme cabin temperatures?
Yes, all selected materials are automotive-grade engineering plastics and silicones designed to withstand extreme thermal conditions, ranging from sub-zero winter temperatures to high heat exposure under direct sunlight.










