Overmolding

At XC Machining, we specialize in Overmolding Services that combine multiple materials into a single, durable part. Our advanced techniques ensure that your components are built for performance, comfort, and longevity, offering a versatile solution for a wide range of industries, from medical to consumer electronics.

Custom Overmolding Solutions for a Range of Applications

Our custom overmolding solutions are designed to enhance the functionality, aesthetics, and durability of your parts. Whether you need ergonomic handles, weather-resistant enclosures, or shock-absorbing components.

When you need precision and efficiency, trust us for the best overmolding services. XC Machining delivers high-quality overmolded parts in both small runs and large-scale production

Two-Shot Molding Experts for Multi-Material Components

XC Machining’s plastic overmolding manufacturing services provide high-performance molded parts using a wide variety of plastic materials. As two-shot molding experts, we are skilled at combining two distinct materials into a single molded part. This advanced process allows for multi-material components that are stronger, more versatile, and have enhanced functionality.

Tolerances for Overmolding

Overmolding is the process of adding a second layer of material, typically elastomer or plastic, over an already molded part. It’s used to enhance functionality and aesthetics, commonly in products like handles, grips, and medical devices.
DescriptionSpecification
Tolerances 
Precision TolerancesAchievable tolerances as tight as +/- 0.002 inches (0.05 mm)
Surface FinishRa 16 µin (0.4 µm) to Ra 32 µin (0.8 µm)
Minimum Wall Thickness0.5mm
Minimum End Mill Size0.5mm
Minimum Drill Size1mm
Maximum Part Size300×300×300 mm
Minimum Part Size10×10×5 mm
Production VolumePrototyping: 1-100 pcs
 Low Volume: 101-5,000 pcs
 High Volume: Above 5,000 pcs
Lead Time7-10 business days for most projects. Delivery of simple parts can be as fast as 3 days.

Why Choose Overmolding with XC Machining?

Provides rapid prototyping and precision parts using advanced CNC technology, ensuring exceptional quality and precision. Trust Overmolding to meet your exacting standards.
Strong Manufacturing Capabilities

In our facility, you have a variety of machines for part production, including CNC turning lathes, milling machines, injection molding equipment, state-of-the-art 3D printing technology, and more.

Flexible Material Selection

At XC Machining, we try to ensure your choice is not limited, which is why we offer over 60 materials for you to choose from for your prototypes and products.

24/7 Engineering Support

In-depth service engineers with the knowledge to address your manufacturing inquiries are available from XC Machining. Our engineers are always on the ground to offer valuable advice.

Choice of Custom Finishes

We offer a range of surface treatments and custom finishes on solid metal and plastic parts, including anodizing, spray painting, vapor polishing, sandblasting, silk screening, etc.

Overmolding Surface finishes Techniques

Overmolding is the process of molding a second layer of plastic around a pre-formed component, often for ergonomic or protective purposes.
Sand Blasting

Sanding smooths the surface of overmolded parts, especially where there’s a seam or excess material, ensuring a uniform finish and a comfortable grip in consumer goods.

Texturing

Texturing creates a matte or grippy surface on overmolded parts, improving tactile feedback and preventing slipping, commonly applied to tools or ergonomic handles.

Anodizing

Anodizing is applied to metal inserts in overmolded parts to provide corrosion resistance and an aesthetic finish that improves longevity in harsh environments.

Brushing
Brushing is used for metal inserts in overmolded parts, giving them a uniform, matte finish that reduces reflection and improves the part’s durability and appearance.
Polishing
Polishing is used to improve the appearance of overmolded components, particularly on high-visibility areas, giving the part a smooth, glossy finish that enhances aesthetics.
Vibratory finishing
Vibratory finishing is ideal for overmolded parts with intricate geometries, smoothing out the plastic surface and removing any excess material left after the molding process.

Our OverMolding Prototype Manufacturing Capabilities

As a leader in precision manufacturing, we offer a wide range of capabilities that cater to both one-off prototyping and low-volume production. We specialize in delivering geometrically complex and highly cosmetic parts, ensuring the highest quality standards. At XC Machining, we pride ourselves on being the go-to manufacturer for all your OverMolding needs, providing reliable and efficient solutions under one roof.
With 3, 4, and 5-axis CNC machining services, we can produce complex prototypes and parts with precise tolerances. More than 60+ materials are available for you to choose from.

Provides injection molding for prototypes and custom parts, emphasizing expert support, competitive pricing, and faster production cycles.

Get reliable vacuum casting services for high-quality prototypes and production parts at competitive prices. XinCheng offers highly detailed casting parts with consistent quality.

Uses cutting, bending, and forming techniques to produce precision metal components suited for industrial, commercial, and manufacturing applications.

Specialist Industries

XC Machining is a trusted partner for industries demanding complexity, reliability and precision. Our expensive experience in producing millions of high quality components brings unmatched expertise to every project. Our services cover a diverse range of applications to ensure that we meet the unique needs of each sector with great care.

Materials for Overmolding Parts

Leading companies and engineers rely on XC Machining for rapid iterations and durable, high-quality parts. Whether it’s for prototyping or full-scale production, our wide range of materials ensures we meet the unique requirements of any Overmolding project with precision and speed.
Metal

Stainless Steel, Titanium, Copper Alloys, Tool Steel (via MIM)

Plastics

Thermoplastics (PP, PE, ABS, PC, Nylon, POM, PS, PMMA, PBT) and Thermosets (Epoxy, Phenolic, Melamine)

Ceramic

Alumina, Zirconia, Silicon Nitride (via CIM)

Elastomer

TPE (TPE-S, TPE-O, TPE-U, TPE-V), TPU, LSR (Silicone)

Get In Touch

Bring Your Designs to Life with XC Machining

Experience precision engineering with XC Machining. From detailed prototypes to high-volume production, we’re here to turn your concepts into reality. Contact us today to discuss your project needs!
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Prototyping Manufacturing FAQs

We carefully control temperature and pressure during overmolding to prevent damage to electronic components. The insulation properties of overmolding materials also safeguard electronic functionality while enhancing durability and aesthetic appeal.
We focus on material and design optimization early in the prototyping phase, use simulation software to reduce trial errors, and recycle compatible materials to cut costs and minimize environmental impact.
Overmolding can add materials that are non-toxic, biocompatible, or flame-retardant to enhance compliance with industry standards, ensuring the finished product exceeds safety and regulatory requirements.
Yes, we provide comprehensive post-processing services such as machining, painting, and texturing to improve both the functionality and aesthetics of overmolded parts.
Overmolding can reduce assembly time and costs by integrating multiple components into a single part, reducing the need for additional fasteners and assembly steps. This streamlined process can lead to significant savings in both production time and costs.

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