Custom manufacturing example · Custom silicone keypad with conductive carbon pills

CUSTOM RUBBER & SILICONE MANUFACTURING

Custom silicone keypad with conductive carbon pills

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

Factory direct
Made to order
Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

A custom silicone keypad with conductive carbon pills needs its visible commands and hidden contact pattern to correspond precisely. The user presses the marked key, while the contact beneath it operates the intended circuit area. Custom molding and marking allow both sides of that relationship to follow the device layout.

Check the orientation of the complete keypad during assembly. A visually symmetrical sheet can still contain different functions or contact positions. Its locating features should establish the correct orientation without forcing a section into place. The enclosure openings must also allow each key to move without pulling the sheet away from its intended seat.

Printed, embossed, debossed, or color-filled legends can identify the controls. Keep the markings aligned with the actual circuit functions and review the normal viewing direction of the product. The electrical interface needs assessment with the matching circuit, including engagement and release after successive presses.

Avoid touching or contaminating the contact side unnecessarily during installation. Loose particles or residue can affect the interface even when the top surface looks clean. For service work, preserve the complete orientation and support arrangement when refitting the sheet, then check the keys across the full group before returning the control assembly to use.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. The electrical interface needs assessment with the matching circuit, including engagement and release after successive presses.
Custom dimensions: The enclosure openings must also allow each key to move without pulling the sheet away from its intended seat.
Fit & assembly: Check the orientation of the complete keypad during assembly.
Use & inspection: Loose particles or residue can affect the interface even when the top surface looks clean.

Photos illustrate structure or material only. The enclosure openings must also allow each key to move without pulling the sheet away from its intended seat. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

From part requirements to production

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.