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You are here: Home » Products » Silicone covered metal » Silicone Covered Metal with Curved Surface & Color Gradient
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Tech-Key Rubber Co., Ltd. specializes in advanced silicone covered metal products, combining the structural strength of metal components with the flexibility, protective characteristics, and design freedom of silicone rubber.
Our Silicone Covered Metal with Curved Surface & Color Gradient demonstrates the possibilities of integrating a rigid metal insert with a soft silicone exterior while creating a distinctive three-dimensional curved surface and customized color appearance.
With more than 60 years of rubber and silicone manufacturing experience in Taiwan, Tech-Key Rubber provides customized OEM/ODM silicone overmolding solutions for customers requiring complex structures, multi-material integration, curved surfaces, color effects, and precision silicone components.
From product evaluation and material selection to mold development, silicone molding, surface finishing, quality inspection, and mass production, our team works with customers to transform product concepts into manufacturable silicone solutions. Tech-Key Rubber's current product portfolio includes silicone-covered metal products alongside multi-color silicone molding, curved-surface technology, and micro injection capabilities.
Silicone covered metal is a multi-material manufacturing concept in which silicone is combined with a rigid metal component to create an integrated product.
Depending on the product design and manufacturing method, a metal insert can be positioned within a mold and integrated with silicone during the molding process, or silicone can be overmolded onto an existing substrate.
Why combine these two materials?
Because they perform different jobs.
Think of the metal as the skeleton and the silicone as the protective skin.
The metal component can provide structural rigidity, dimensional stability, or mechanical support, while the silicone exterior can provide a softer contact surface and additional protective or ergonomic characteristics depending on the material formulation and product design.
Overmolding can also reduce the need to manufacture separate parts and manually assemble them afterward. Industry references describe silicone overmolding as a way of bonding materials together while offering design flexibility and reducing secondary assembly requirements.
A major feature of this product is its three-dimensional curved silicone surface.
Unlike a conventional flat silicone pad or simple molded component, a curved surface requires more careful consideration of product geometry, mold structure, material flow, surface appearance, and demolding.
The transition between the metal insert and silicone-covered area also needs to be considered during product development.
Tech-Key Rubber's experience in curved-surface silicone manufacturing provides customers with greater design freedom for products requiring:
This makes silicone-covered metal suitable not only for functional components but also for products where appearance, touch, structural performance, and brand identity need to work together.
Another distinctive characteristic of this product is its color gradient effect.
Instead of presenting a conventional single-color silicone exterior, the surface transitions between colors, creating a more sophisticated visual appearance.
Achieving controlled color effects on a three-dimensional silicone surface can require different manufacturing or post-processing approaches depending on the product design, silicone formulation, desired appearance, production volume, and durability requirements.
Possible approaches may include specialized molding techniques or appropriate silicone surface finishing processes.
For example, silicone spray coating is an established post-processing technique in which a coating is atomized and applied to the product surface. Depending on the coating system, this can be used to modify surface color, tactile characteristics, gloss, dust resistance, or abrasion performance.
The appropriate method should therefore be determined according to the customer's actual product requirements rather than assuming that every gradient product uses the same process.
A customized silicone-covered metal project typically begins with a detailed evaluation of the product structure.
The customer provides a drawing, 3D file, sample, or product concept.
Our team evaluates the geometry, silicone-covered area, metal component, surface requirements, colors, dimensions, and intended application.
The metal component is reviewed according to the product structure and molding requirements.
Depending on the project, materials may include stainless steel, aluminum alloy, or another suitable metal specified by the customer.
The silicone material is selected according to required hardness, flexibility, appearance, operating environment, and other project-specific requirements.
Tooling is designed around both the metal insert and the required silicone geometry.
For curved products, special attention must be given to the shape, silicone coverage, parting structure, and dimensional requirements.
The metal component and silicone are integrated according to the validated production process.
For insert-molding processes, industry practice may include cleaning the insert, applying an appropriate primer when required, preparing the insert, positioning it in the mold, molding the silicone, and then carrying out finishing operations.
If the project requires special colors, tactile effects, printing, coating, or other appearance treatments, suitable post-processing can be evaluated.
Finished components are inspected according to the agreed product specifications before packaging and shipment.
Combining silicone with metal opens up design possibilities that a single material cannot easily provide.
Metal provides the internal or functional structure, while silicone creates a flexible exterior interface.
Overmolding can combine different materials into a more integrated component and may reduce subsequent assembly requirements.
Silicone can be molded around curved or irregular product geometries, providing designers with greater flexibility.
Color, surface texture, raised features, curved geometry, and other visual characteristics can be evaluated according to OEM project requirements.
A product does not have to look like another ordinary black or gray industrial component.
Customized colors and curved surfaces can help manufacturers create stronger visual identity and product recognition.
Silicone-overmolded metal components can be developed for a wide range of customized applications.
Potential applications include electronic accessories, protective components, USB-related products, portable device accessories, and customized housings.
The combination of rigid internal structures and softer exterior surfaces can support products where both structural design and tactile characteristics matter.
Customized overmolded components may be considered for control parts, protective components, accessories, handles, and other applications according to project specifications.
Silicone-covered metal can be used where a product requires a rigid component combined with a flexible or protective exterior.
Curved surfaces, customized colors, raised logos, and distinctive silicone finishes can also be used to create visually differentiated branded products.
Tech-Key Rubber's advantage is not limited to covering a metal component with silicone.
Our broader silicone manufacturing capabilities include:
Silicone Covered Metal Products
Multi-Color Silicone Molding
3D Curved Surface Silicone
Color Gradient Surface Design
Raised Multi-Color Lettering
Precision Micro Injection
Silicone Spray Coating
OEM / ODM Silicone Manufacturing
This combination allows customers to discuss more complex projects that integrate material, structure, color, surface appearance, and functionality rather than purchasing only a standard molded silicone component. Tech-Key identifies these advanced silicone technologies as core areas of its current manufacturing offering.
Every silicone-covered metal product is different.
The correct manufacturing solution depends on the metal substrate, silicone material, component geometry, bonding requirements, color design, surface treatment, quantity, and intended application.
For a new OEM/ODM project, customers are encouraged to provide as much information as possible, including:
2D / 3D drawings • Product dimensions • Metal material • Silicone requirements • Hardness • Color requirements • Surface finish • Application • Estimated quantity • Reference samples
Our engineering team can then evaluate manufacturing feasibility and recommend an appropriate production approach.
With more than 60 years of manufacturing experience, Tech-Key Rubber is committed to helping international customers develop customized silicone solutions from concept to production.
Silicone overmolding combines silicone with a rigid metal substrate to create an integrated multi-material component. The exact process depends on the product design, material combination, and manufacturing requirements.
Curved and complex geometries can be evaluated for customized molding. Feasibility depends on the metal structure, silicone coverage, mold design, dimensions, and required performance.
Customized color and surface effects can be evaluated according to the desired appearance, product geometry, material, and production requirements. The appropriate molding or post-processing method should be determined for each project.
Silicone spray coating is one available post-processing approach. Depending on the coating system, it can modify color, touch, gloss, dust resistance, or abrasion characteristics.
Yes. Tech-Key Rubber presents OEM/ODM development as part of its silicone manufacturing capabilities and supports customized silicone product projects.
From a simple metal insert to a sophisticated 3D curved silicone surface with customized color effects, Tech-Key Rubber helps customers combine structural design, silicone manufacturing, and product appearance into one integrated solution.
If your next project requires silicone overmolding on metal, curved surface silicone molding, customized color effects, multi-color silicone, or OEM/ODM silicone manufacturing, contact Tech-Key Rubber to discuss your drawings, specifications, and product requirements.
From Metal Structure to Advanced Silicone Surface — Turn Your Product Design into Reality.
