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Overmolding Service
Overmolding service from Top Proto n will let you craft stronger and more useful products. These products will be more durable and more comfortable for our consumers. With Overmolded products, you can more easily get grips, insulation, seals, or more decorative features to get a more appealing product.
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Get instant pricing, project lead times, and DFM feedback.
- All uploads are secure and confidential.
What is Overmolding?
This process forms a permanent bond between a substrate and a secondary material. The substrate can be a type of plastic or metal, and the secondary material is usually rubber or some type of plastic with a soft touch. The benefits of this process include improved grip, shock resistance, and better sealing. Overmolding also integrates products with different materials into a single product. This process also eliminates the need for assembly and product failure.
Overmolding Process
Plastic over Plastic
This process combines two different plastics to enhance flexibility and visual appeal. It is commonly used for electronics and plastic housings to ensure a durable bond between materials.
Rubber Over Plastic
This process combines rubber and rigid plastic to enhance grip and vibration dampening. It is commonly used for hand-held tools and medical devices to ensure a comfortable handle.
Plastic Over Metal
Rubber Over Metal
This process combines rubber and heavy metal to enhance sealing and noise control. It is commonly used for automotive and industrial systems to ensure a reliable performance.
Why Overmolding Services?
Top Proto provides integrated overmolding solutions with engineering know-how, sophisticated tooling, and exceptional quality control. We take care of all aspects of overmolding, including engineering of materials, mold design, and process improvement, so all overmolded products receive the exact functional and visual requirements.
We optimize the process to make sure defects do not occur and process efficiency improves. Clients receive consistent and in-stock overmolded products ready for deployment. Moreover, we are thinking of providing painting over molds to make the products aesthetically valuable and more durable.
Materials for CNC Overmolding
Overmolding Surface Finishes
Overmolding Design Guide Line
| Parameter | Description |
|---|---|
| Maximum Reel Size | Up to 1000 × 100 × 450 MM |
| Minimum Reel Size | Starting from 170 × 75 × 15 MM |
| Reel Design Control | Optimized for aluminum & non-structural aluminum |
| Dimensional Customization | Plastic core plastic, rubber core plastic, rubber core metal |
| Polymers Options | TPE, TPU, silicone-based materials |
| Core Material Types | Engineering plastics and reinforced metals |
| Cavity Tolerance | ± 0.02 MM |
| Branding Operations | Surface branding, grip pattern finishing |
| Enhanced Support | Molded grip zones and functional texturing |
| Wall Thickness Range | 1 MM – 4 MM |
| Draft Angle | 1° – 4° depending on enclosure |
| Grip Pattern Designs | Anti-slip textures & ergonomic shaping |
| Typical Lead Time | Tooling and trials in 20–25 working days |
Overmolding Gallery Parts
Explore our portfolio of high-precision components, showcasing advanced technology and engineering excellence. From intricate milling to high-speed turning, each part reflects our commitment to ISO-certified quality and technical perfection.
Industry Expertise at Top Proto
With millions of parts successfully produced, TOP PROTO Machining brings extensive expertise across a wide range of applications. We specialize in industries that demand precision and complex component manufacturing. No matter the challenge, you can rely on us for exceptional quality and proven experience.
Made in China, Precision You Can Rely On
Located in China, our facilities are equipped with cutting-edge technology to handle everything from rapid prototyping to full-scale production. With skilled technicians and meticulous quality control, we guarantee custom plastic and metal parts delivered with speed, precision, and no middlemen involved.
Machines, All Running at Peak Efficiency
Ultra-Fine Tolerances Starting at 0.01 mm
Fast Lead Times Starting from 24 Hours
Materials Available for Every Project
Choose Us for Flexible Pricing and Quick Delivery
At TOP PROTO, we know price and timeline go hand in hand. Our CNC machining services can work around your budget and deliver on your deadline. Get a quote instantly and select the service to meet your requirements.
- Competitive pricing with quality always remains.
- Fast lead time to complete the project quickly.
What Makes Top Proto Different from Others
How We Works – 3-Stages Workflow
We guarantee that CNC parts are delivered on time and that the process is completely transparent in the following 3 simple steps:
Upload Your Files
Instant prices with DFM feedback for many file types.
We Manufacture Your Parts
You can select from many materials and methods.
Tracking and Receiving Your Parts
View the QC documentation and inspection photographs.
Pros of Overmolding
- Better Functionality:Different materials can do different things so they can easily be made into one part.
- Accuracy: Ideal for product consistency and quality over long production runs.
- Better Durability: More impacts, vibrations, and general wear and tear don't affect it.
- Better Efficiency:Fewer assembled parts require maintenance over the years.
- Design Variety:Can accommodate detailed geometries and additional components.
- Short Turnaround: More efficient cooling systems and part ejectors produce in less time.
Rapid Tooling
Rapid tooling let’s you go faster to go from an idea to functional parts. With our advanced CNC machining service, we create molds and tooling with precision needed to test designs, validate fit, and function and bring products to market faster. It’s perfect for prototypes, low volume runs, and early-stage development where outworking competitors is critical and precision matters most.
Production Tooling
For our production tooling, we prioritize long-term durability. With top grade materials and precision CNC machining, we make tooling that allows full-scale production without losing accuracy. If you need thousands of the same parts, and even with batch production, we deliver consistent, reliable tooling and stable production cycles.
Quality Assurance & Compliance
We stay true to industry standards that have to do with quality and safety, like ISO 9001:2015 and AS9100. We assess and check every part multiple times to ensure that inspections have been done thoroughly and that we can offer no exceptions to your needs.
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