Custom manufacturing example · keypad carbon pills custom made silicone button rubber keypad

CUSTOM RUBBER & SILICONE MANUFACTURING

keypad carbon pills custom made silicone button rubber keypad

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

Keypad carbon pills provide conductive contact elements within a custom silicone button arrangement. Their position and dimensions should correspond to the circuit pattern and the movement of each molded key. The complete keypad, housing, and board support establish the working contact relationship.

Check the gap beneath relaxed keys and the travel available during a press. A pill positioned off-center or held too close to the circuit can change operation even when the visible button appears correctly placed. The surrounding membrane needs support without being trapped in the moving path.

Keep contact surfaces free of dust and oily fingerprints during assembly. Fit the keypad in its intended orientation, then test every key with the case fasteners secured. Include release and adjacent-key behavior as well as successful input. Markings can be printed, raised, recessed, or color-filled to identify functions within the visible face area. Electrical resistance and operating life belong to the finished keypad and circuit design and should not be inferred solely from the presence of carbon contacts.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. Check the gap beneath relaxed keys and the travel available during a press.
Custom dimensions: A pill positioned off-center or held too close to the circuit can change operation even when the visible button appears correctly placed.
Fit & assembly: Fit the keypad in its intended orientation, then test every key with the case fasteners secured.
Use & inspection: Electrical resistance and operating life belong to the finished keypad and circuit design and should not be inferred solely from the presence of carbon contacts.

Photos illustrate structure or material only. The complete keypad, housing, and board support establish the working contact relationship. 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.