CUSTOM RUBBER & SILICONE MANUFACTURING

Elastomer silicone button rubber keypads with carbon pill

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

An Elastomer silicone button with a carbon pill provides a flexible pressing surface and an underside contact feature. The pill needs to approach the corresponding electronic contact in the intended orientation. A custom button outline should therefore be considered together with the shape and movement of the rubber below it.

A wide or unevenly pressed key can tilt as it moves. During evaluation, press different parts of the usable top surface and check that the button returns freely afterward. The surrounding housing should guide the intended movement without rubbing against the key or holding one edge lower than the other.

Custom dimensions, colors and molded identification are available, with a listed hardness range of 20 to 80 Shore A. Use those options to develop the complete button, rather than treating hardness as a direct substitute for the desired operating feel. Keep the carbon pill face away from abrasive surfaces while handling the part. If the assembled response changes after enclosure closure, examine board support and rubber seating before altering the contact or trimming the molded body.

Material options
Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection
Silicone: 20–80 Shore A. An Elastomer silicone button with a carbon pill provides a flexible pressing surface and an underside contact feature.
Custom dimensions
The surrounding housing should guide the intended movement without rubbing against the key or holding one edge lower than the other.
Fit & assembly
If the assembled response changes after enclosure closure, examine board support and rubber seating before altering the contact or trimming the molded body.
Use & inspection
During evaluation, press different parts of the usable top surface and check that the button returns freely afterward.

Photos illustrate structure or material only. If the assembled response changes after enclosure closure, examine board support and rubber seating before altering the contact or trimming the molded body. 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

01

Define the part

Identify key dimensions, mating surfaces and quantity

02

Review material & tooling

Agree the compound and manufacturing approach

03

Evaluate the sample

Review the fit and agreed requirements in the assembly

04

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.

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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

DISCUSS THIS COMPONENT

Request a Custom Quote

You can also email us directly at [email protected].