Overmolding Company | Custom Multi-Material Solutions
What is Meant By the Overmolding Process?
- In overmolding, several materials are used during a single production process. This may involve two-shot molding, multi-material molding, insert molding, and other sophisticated methods. It begins with a substrate, which is frequently a plastic or a metal, on which a secondary substance is molded.
- 2K Injection Mould technology developed by SunOn, or the double shot molding as it is also referred to. It enables the incorporation of such materials as TPU+ABS or PC+PC, which makes it possible to create soft-touch overmolding solutions, two-color logos, ergonomic grips, and seal parts- all under one operation. The method not only results in the aesthetics of the product, but it also increases load in overmolding, which ensures strength and service.
The main advantages of the overmolding process are:
- Smooth material combination to enhance durability and looks.
- Fewer assembly processes decrease the cost of production.
- Improved ergonomics and design.
- The capability to act with a broad spectrum of materials, such as TPE, TPU, LSR, as well as engineering-grade plastics.
Overmolding Company: Best Solutions of Multi-Material Manufacturing
- The modern competitive manufacturing environment requires a company to choose the appropriate overmolding company that will help in the creation of a good product or an excellent product. Overmolding is a special technique that involves combining two or more materials together into one high-performance component. SunOn is a rapidly growing manufacturer of custom overmolding that has managed to produce the latest answers to the challenges of creating precision, durability, and aesthetic masterpieces.
- Over 35 years of history has made SunOn a reliable plastic overmolding firm used by industries such as automotive to medical devices, electronics, consumer products, and others. Their developed procedures such as injection overmolding and metal to plastic overmolding guarantee smooth bonding, high functionality, and low production costs.
Categories of Overmolding Services Rendered
An excellent overmolding firm in the market, such as SunOn, offers numerous services to the needs of different industries:
- Overmolding and Custom Injection Molding
SunOn is a manufacturer of custom injection molding and overmolding, producing precision parts of tight tolerances. This encompasses the production of overmolded parts for industrial, medical, and consumer electronics use. Their design teams use overmolding design optimization and prototype to production molding services in order to make sure that all parts are of high quality.
- Two-Shot Over-Molding Services
Two-shot overmolding services enable the two materials/colors to be injected into one mold sequentially. This helps to avoid the secondary assembly process and also helps in cutting labor expenses and The dual-material molded component that is produced is of high quality and has excellent durability. SunOn has the expertise to execute the project without any fault, thus qualifying it among the best to undertake high-precision overmolding projects.
- Multi-Material and Multi-Insert Molding
Industries that demand a mixture of properties that include soft-touch grip on hard plastic substrates are highly dependent on multi-material overmolding. SunOn has led in the area of insert molding and overmolding, whereby manufacturers are able to inject plastics, metals, and even silicone into one part. The application is complemented by such capabilities as the manufacturing of overmolded cable assemblies and ergonomic housings of medical devices.
- Silicone Overmolding and Rubber Overmolding
SunOn provides rubber overmolding and silicone overmolding facilities to applications that require flexibility or chemical resistance. The processes suit well in sealing components, ergonomics, and protecting casings in the automotive, medical, and electronics sectors.

Materials in Overmolding
Overmolding products require critical material selection in order to obtain high quality. Some of the materials that SunOn deals with include:
- Soft-touch thermoplastic elastomers (TPE).
- Durability and flexibility of TPU, thermoplastic polyurethane.
- Heat and chemical resistance: Liquid silicone rubber (LSR).
- Structural integrity of ABS, PC, and Nylon plastics that are engineered.
- Plastic overmolding substrates made of metal.
All materials can comply with the ISO-compliant standards of the world, such as RoHS and REACH, and their manufacturing provides them with safe and reliable products.
Industry Applications
SunOn's overmolding services cut across a broad spectrum of industries, offering specialized services to complex manufacturing applications.
- Auto Component OM
SunOn also produces overmolded dashboards, overmolded handles, switches, and sealing parts. The two-compound molding guarantees ergonomic designs that are strong enough to endure day-to-day use and under extreme conditions.
- Medical Device Overmolding
Medical equipment is required to be precise and safe. SunOn provides medical device solutions in custom overmolding, such as surgical tool handles, protective enclosures, and wearables with tight tolerance and dimensional repeatability.
- Consumer Electronics Overmolding
It is in consumer electronics that overmolding of mobile phone cases and wearables is necessitated by perfect aesthetics and strong bonding. SunOn has developed high-end solutions of dual-material molding that provide high finishes and durability of electronic components.
- Industrial Equipment and Aerospace
SunOn offers industrial over-molding applications and manufactures protective covers, grips, and housings. Their experience in multi-material molding is the reason why industrial and aerospace parts are of high performance and safety standards.
Why SunOn as Your Overmolding Company?
SunOn is a pioneer in the overmolding service provider due to several factors:
- High Technology - Their vertical molding machines and 2K injection mould endorse multi-shot molding, insert molding, and dual material injection to ensure that there is innovation and precision.
- Full-Service - SunOn is a manufacturer of end-to-end solutions of overmolded assembly, offering CAD design solutions, precision machining, mold testing, and mass production.
- Knowledge in the Industry - SunOn has experience in automotive, medical, electronics, consumer products, and industrial business, making it a reliable OEM overmolding company.
- Quality and Compliance: ISO-certified production, quality inspection, and compliance with RoHS/REACH standards ensure high quality and reliability of products.
- Cost Efficiency- SunOn one-step overmolding services to OEM manufacturers cost-effectively in terms of assembly and reduced labor requirements without sacrificing quality.
- Customization and Flexibility - Each project is unique and is compatible with industry requirements, including soft-touch overmolding and engineering-grade polymer overmolding.
Technical Capabilities
The technical capabilities of SunOn are the best within the industry. Key features include:
- High-volume production tooling design.
- Bonding methods of seamless material integration through thermoplastics.
- Complex parts molding Secondary operations.
- Accuracy of molding technologies with a high level of repeatability and quality production.
- TPU+ABS, PC+PC, soft-hard compatibility test.
They have skills in maximizing the overmolding design and prototype and mass production overmolding, and as such, their customers can introduce the product into the market at a faster pace without compromising on quality.
Overmolding to Add Value to a Product
The overmolding services offered by SunOn enhance the simplicity of product use, stability, and beauty. Multi-material overmolding value addition will involve:
- Designing wear and tear-resistant, high-performing molded components.
- Improving ergonomics and user-friendliness by using soft-touch materials.
- Minimizing waste and assembly time with molding.
- Allowing new designs using two colors or multi-material designs.
Under SunOn, organizations will be able to gain a competitive edge, as well as optimize product attractiveness in the market.
Conclusion
To be innovative in products, reliable, and successful in the market, selecting the correct overmolding company is necessary. SunOn is a reliable and plastic overmolding organization providing unparalleled experience in custom overmolding, multi-material molding, and accuracy in components. When companies need innovative, durable, and well-designed components, SunOn can be the ultimate solution for the business, as the company aims for perfection in the overmolding services.