Plastic plate overmolded with a red silicone seal ring
SILICONE + PLASTIC
OEM / ODM
01 / ESKY SUPPLY

Silicone + Plastic Components and Overmolded Assemblies

ESKY manufactures custom silicone and plastic components where soft-touch, sealing, grip, cushioning or integrated assembly is required.

Custom Development

Product development and dedicated tooling around your application.

Quality & Delivery

Quality control, assembly, packaging and shipment coordination.

TYPICAL STRUCTURES

How Silicone and Plastic Combine

The right structure depends on the function the silicone layer has to perform.

Silicone over rigid plastic

A sealing or tactile layer over a stiff substrate.

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Soft-touch grips

Comfortable surfaces over structural plastic.

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Device housings

Sealed housings with integrated silicone features.

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Protective frames

Impact protection molded around frames.

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Sealing interfaces

Gasket features bonded to plastic bodies.

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Functional inserts & assemblies

Plastic inserts overmolded and combined into assemblies.

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Close-up of the silicone seal and metal contact interface

DESIGN CONSIDERATIONS

What Determines Bond Quality

Silicone-to-plastic bonding is a system of material, surface and process — all three are reviewed at DFM.

Plastic substrate

Surface energy / bonding

Mechanical lock

Shut-off

Gate and flow

Warpage

Heat exposure

Insert tolerance

Send a Drawing

APPLICATIONS

Applications We Serve

Silicone + plastic components appear across these product areas.

CASE STUDIES

Related Manufacturing Case Studies

WATERPROOF CONNECTORS1

Preventing Silicone Flash on Connector Contact Pins

Improving mold shut-offs, insert positioning and process control to keep silicone off electrical contact areas.

Read the Case
SILICONE + PLASTIC2

Improving Bond Reliability in Silicone-to-Plastic Overmolding

Coordinating material compatibility, surface preparation and molding conditions to reduce separation between silicone and plastic components.

Read the Solution

FAQ

Frequently Asked Questions

START A CUSTOM PROJECT

Developing a Silicone + Plastic Part?

Share your drawing, reference sample or product idea. Tell us about the application, material requirements and estimated quantity so we can review the next steps.

Project Contact
info@eskysupply.com
Phone number
+86-13530555419
Location
Jinhua, Zhejiang, China

PROJECT INTAKE

Developing a Silicone + Plastic Part?

Send the drawing and substrate details for review.

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