Custom manufacturing example · Customized conductive keypads and silicone numeric buttons

CUSTOM RUBBER & SILICONE MANUFACTURING

Customized conductive keypads and silicone numeric buttons

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

Silicone numeric buttons need clear digit placement and a conductive contact arrangement that responds independently during entry. The molded array should let users move between numbers without pulling a neighboring section or shifting the sheet over the board. Layout and support therefore matter alongside the appearance of each digit key.

Match the button centers and underside contacts to their respective panel and circuit references. If a larger confirmation or zero key is included in the design, assess presses across its usable face rather than treating it as a scaled version of a smaller cap. The housing needs clearance for angled finger contact at the outer rows.

Test representative number sequences with the assembly fully secured. Observe reliable return and unwanted simultaneous input as well as initial activation. Keep the contact face clean during fitting, and preserve the legends through the intended cleaning method. After service, check that the sheet is relaxed and correctly located before closing the housing, since a trapped edge can change the response of several nearby keys.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. If a larger confirmation or zero key is included in the design, assess presses across its usable face rather than treating it as a scaled version of a smaller cap.
Custom dimensions: The molded array should let users move between numbers without pulling a neighboring section or shifting the sheet over the board.
Fit & assembly: Match the button centers and underside contacts to their respective panel and circuit references.
Use & inspection: Keep the contact face clean during fitting, and preserve the legends through the intended cleaning method.

Photos illustrate structure or material only. The housing needs clearance for angled finger contact at the outer rows. 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.