China Injection Molding Overmolding Service
We specialized in injection molding overmolding service that combine multiple materials into a single component.
Overmolding is a manufacturing process where multiple types of materials are molded together to form a single cohesive component. It is a two-step procedure, start with a pre-shaped substrate material, which can be made from plastic, metal, or other material, then covered with an additional layer of plastic or rubber.
Benefits of overmolding include:- Improved functionality with better shock absorption, and insulation
- Ehanced grip and tactile feel by adding layer to a rigid part
- Multi-color or multi-material design can improve aesthetics
- Protective layer increased part durability.
- Reduce assembly steps, and cost saving.
Overmolding Services Specifiactions
| Service | Details |
|---|---|
| Process Materials | Most plastics and rubber, including custom sourcing, see material list below |
| Standard Finishes | SPI and VDI |
| Mold Service | DFM report and mold flow analysis |
| Mold Ownership | Customer owned with mold maintenance |
| Mold Cavities | Single or multi-cavities |
| Mold Life | Unlimited (If the mold worn out, Erye will cover the cost of new mold) |
Overmolding Service Process
Plastic over plastic
Plastic over metal
Rubber over plastic
Rubber over metal
Materials for Overmolding Service
Substrate Materials for Overmolding
Plastics
- Polypropylene (PP)
- Polyethylene (PE)
- Acrylonitrile Butadiene Styrene (ABS)
- Polycarbonate (PC)
- Nylon (PA)
- Polyurethane (PU)
Metals
- Aluminum
- Steel
- Brass
Composites
- Glass-reinforced plastics
- Carbon-reinforced plastics
Bonding Materials for Overmolding
Rubbers
- Silicone
- EPDM
- NR (Natural rubber)
- NBR (Nitrile butadiene rubber)
- SBR (Styrene-butadiene)
- CR (Chloroprene rubber, neoprene)
- FKM (Fluoro-Elastomer)
- FKKM (Perfluorelastomer)
Thermoplastics
- Thermoplastic Elastomers (TPE)
- Thermoplastic Polyurethane (TPU)
- Polyvinyl Chloride (PVC)
- Polyurethane (PU)
Overmolding Guide
Overmolding Surface Finishing Standard
| Finishing | Description | Price Range | SPI Grades |
|---|---|---|---|
|
Provides a highly reflective surface, ideal for aesthetic applications such as consumer products. | $$$ | SPI A1, A2, A3 |
|
Offers a moderate sheen, balancing gloss and matte, suitable for parts needing some visual appeal without being overly shiny. | $ | SPI B1, B2, B3 |
|
Features a non-reflextive surface that reduce glare, often used for functional parts where aesthetics are less critical. | $$ | SPI C1, C2, C3 |
|
Enhances grip and durability, commonly applied to functional components to improve handling and reduce wear. | $$$ | SPI D1, D2, D3 |
SPI A: Glossy Finish
Provides a highly reflective surface, ideal for aesthetic applications such as consumer products.
- Price Range: $$$
- SPI Finish Grades: SPI A1, A2, A3
SPI B: Semi-Gloss Finish
Offers a moderate sheen, balancing gloss and matte, suitable for parts needing some visual appeal without being overly shiny.
- Price Range: $
- SPI Finish Grades: SPI B1, B2, B3
SPI C: Matte Finish
Features a non-reflective surface that reduces glare, often used for functional parts where aesthetics are less critical.
- Price Range: $$
- SPI Finish Grades: SPI C1, C2, C3
SPI D: Textured Finish
Enhances grip and durability, commonly applied to functional components to improve handling and reduce wear.
- Price: $$$
- SPI Finish Grades: SPI D1, D2, D3
Advantages of Overmolding with Us
Overmolding Applications
Overmolding FAQs
Related Resources of Overmolding
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