Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Custom made silicone button keypad with carbon pills
CUSTOM RUBBER & SILICONE MANUFACTURING
Custom made silicone button keypad with 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
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 silicone button keypad with carbon pills combines a flexible key surface with conductive contact elements beneath the keys. The custom layout should align those elements with the matching circuit pattern in the finished device. Size, color, and molded geometry can be developed around the enclosure and its internal supports.
The locating arrangement needs to control the keypad across the full array. A key near the main locator may be well positioned while one farther away can shift if the sheet is not supported appropriately. Review the relationship between each key, its carbon pill, and the circuit contact area with the enclosure secured. The intended travel should bring the contact into engagement without leaving it compressed at rest.
Presses made near a key edge are useful for checking the assembled movement. They should not cause the contact to miss its intended area or hold an adjacent key down. The rubber also needs to return freely after the finger is removed. These details are established by the keypad and circuit assembly together.
Protect the carbon contact surfaces from handling residue and loose particles during installation. Keep the underside clean without scraping it with a sharp tool. If switching becomes inconsistent, inspect alignment, free return, and the condition of the contact area as part of the complete control assembly.
- Material options
- Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Silicone: 20–80 Shore A. The intended travel should bring the contact into engagement without leaving it compressed at rest.
- Custom dimensions
- A key near the main locator may be well positioned while one farther away can shift if the sheet is not supported appropriately.
- Fit & assembly
- If switching becomes inconsistent, inspect alignment, free return, and the condition of the contact area as part of the complete control assembly.
- Use & inspection
- Protect the carbon contact surfaces from handling residue and loose particles during installation.
Photos illustrate structure or material only. A silicone button keypad with carbon pills combines a flexible key surface with conductive contact elements beneath the keys. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
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
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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