Overmolding Services
Using overmolding to combine two or more materials to improve the performance and appearance of prototypes and production parts.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
What is the Overmolding?
Overmolding, also known as two-shot molding or multi-material molding, is a plastic injection molding process where two or more different materials are combined to produce a single, integrated part. This process involves molding one material (usually a soft or elastomeric material) over another material (usually a rigid plastic or metal component) to create a final product with improved functionality, aesthetics, or ergonomic features.
Boyi Overmolding Capabilities
Boyi provides you with high-quality and customized solutions. Whether you need to quickly validate new product designs, produce a small number of prototypes, or produce specific quantities of parts on demand.
| Standards | Metric units | Imperial units |
|---|---|---|
|
Maximum Part Size |
345×125×55 mm |
13.6×4.92×2.16 in. |
|
Minimum Part Size |
2×2×3 mm |
0.08×0.08×0.12 in. |
|
Projected Mold Area |
112,903 sq. mm (plastic) |
175 sq in. (plastic) |
|
Depth |
101mm from parting line |
4 in. form parting line |
|
Tolerance |
±0.025 mm |
±0.001 in. |
|
Radii |
0.1mm |
0.004 in. |
|
Volume |
966837 cu. mm |
59 cu. in. |
|
Mold Validation |
Provide T0, T1, T2 samples before mass production |
|
|
Lead Time |
From mold making to sample delivery: 15-45 business days |
|
Materials for Overmolding
We provide various materials for overmolding to create products with different characteristics and functions. Please review our material list:
Base Substrate
- Polycarbonate
- Polypropylene
- Nylon
- Polystyrene
- PES
- PEK
- PEEK
- PEI
- Plastic Alloys
- GFRP
Soft Overmold
- TPE
- LSR
- TPU
- Nitrile Rubber
- HNBR
- FVMQ
- Acrylic Rubber
- FKM
- Chloroprene Rubber
- NBR-CH
Gallery of Overmolding Parts
Overmolding Benefits
This process offers several benefits in various industries. Here are some of the key advantages of overmolding:
- Improved Product Durability
- Enhanced Aesthetic
- Increased Comfort and Ergonomics
- Seamless Integration of Components
- Water and Dust Resistance
- Vibration Damping
- Customization and Branding
- Reduced Production Costs
- Material Compatibility
- Lightweight Design
Application of Overmolding
Overmolding finds applications in various industries, and specific of components that benefit from this process include:
- Screwdriver handles
- USB cables
- Steering wheel covers
- Surgical instrument handles
- Remote control casings
- Drill handles
- Bicycle grips
- Golf club handles
- Machine handles
- Fitness tracker bands
- Toothbrushes
- Threaded inserts
Why Choose Boyi for Overmolding?
Choosing Boyi for overmolding allows our experienced professionals to provide personalized services and comprehensive support one-on-one, ensuring that the product meets expected requirements and standards.
01
Strict Tolerance Standards
We ensure that each product meets high standards and precision requirements. The tolerance is as low as ± 0.025mm.
02
Endless Options
With our advanced equipment and precise functions, we offer hundreds of materials to choose from for your order.
03
Manufacturing Network
We have obtained ISO 9001:2015 certification. Provide professional customized services and comprehensive support.
What is the Difference Between Overmolding and Insert Molding?
Overmolding is the process of covering a material on the surface of another part to enhance its functionality or appearance. Insert molding is the process of placing prefabricated inserts in a mold, and then injecting plastic around the insert to fix it in a plastic component.
Assuming we are going to manufacture a tool:
Overmolding is like covering the handle of a tool with a rubber coating, increasing grip comfort and slip resistance. Insert molding is like inserting a small screwdriver into the plastic handle of the cutting tool, making it a complete component that is both convenient to use and durable.
About Overmolding FAQ
Overmolding is the process of first injection molding the basic components, and then adding another material (covering layer) to a specific area or surface. This usually requires an additional injection molding process to add a second layer of material and ensure that the two materials can be firmly combined into a single part.
The production cycle may vary depending on project complexity and requirements. Normally, we can complete customized prototypes or on-demand production of parts within the shortest 15 days. We are committed to efficient production processes to ensure timely delivery of high-quality finished products.
Overmolding is widely used in many industries, including medical devices, automobiles, consumer goods, electronics, and more. From soft handles in medical devices to anti slip functions in automotive parts, they can all be achieved through overmolding.
Manufacturing Resources
Warping Defect in Injection Molding: How To Avoid (Plastic Parts)
Short Shot Injection Molding: Causes, and How to Fix Defect
