Custom made conductive silicone keypad and buttons

A conductive silicone keypad needs to separate from its mating contacts cleanly after every press as well as reaching them during activation. The available return movement can be affected by enclosure clearance, clamping, and contamination. A key that activates correctly once may still be unsuitable if it occasionally remains partly depressed.

Coordinate the molded button profile with the board contact pattern and the panel opening. The sheet should sit in its designed position without being stretched by locating features or compressed into an unintended shape. Each moving section needs enough room around it to recover after an off-center press.

Evaluate repeated sequences in the assembled product, including adjacent buttons operated in quick succession. Watch for a cap rubbing against its aperture and for movement of the surrounding sheet when a larger key is pressed. Keep the conductive side protected during handling so that debris does not alter the electrical interface. If release becomes unreliable, check the physical return and contact cleanliness separately; changing the software response cannot correct a button that is mechanically held against its contact.

Material options

Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Silicone: 20–80 Shore A. Each moving section needs enough room around it to recover after an off-center press.

Custom dimensions

The sheet should sit in its designed position without being stretched by locating features or compressed into an unintended shape.

Fit & assembly

If release becomes unreliable, check the physical return and contact cleanliness separately; changing the software response cannot correct a button that is mechanically held against its contact.

Use & inspection

A conductive silicone keypad needs to separate from its mating contacts cleanly after every press as well as reaching them during activation.

Photos illustrate structure or material only. Watch for a cap rubbing against its aperture and for movement of the surrounding sheet when a larger key is pressed. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.