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Products
- Accessories
- Printed Heating Element
- Precision Rubber Parts
- Printed Circuits
Custom Rubber-Plastic Overmolded Parts from China Suppliers - High-Quality Manufacturing at Our Factory
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 benefits of 2K dual-colour overmoulded buttons?
2K dual-colour overmoulding combines two different plastic materials or colours into a single integrated component. This process ensures the button symbols are wear-resistant and provides a premium tactile feel and excellent light-transmittance for backlit automotive buttons.
How does overmoulding silicone onto ECU housings achieve an IP67 rating?
By directly overmoulding the silicone sealing ring onto the ECU plastic housing, a seamless and high-precision bond is created. This eliminates assembly gaps and prevents dust and water ingress, ensuring reliable performance under harsh conditions to meet IP67 standards.
Why is soft-edge trim used for automotive dashboards?
Soft-edge trim enhances passenger safety by cushioning impact areas. Additionally, it improves the interior aesthetics of the vehicle and reduces squeak and rattle noises (NVH) caused by friction between dashboard components.
What makes overmoulded dust-proof rings ideal for charging ports?
Overmoulding ensures that the elastomeric dust-proof ring is permanently bonded to the rigid charging port structure. This prevents the seal from detaching or shifting during repeated use, ensuring long-term protection against dust and moisture.
What materials are typically used in automotive overmoulding?
Common material combinations include thermoplastic elastomers (TPE), thermoplastic polyurethanes (TPU), or liquid silicone rubber (LSR) overmoulded onto rigid substrates like polycarbonate (PC), ABS, or polyamide (nylon) for superior durability and adhesion.










