silicone conductive numeric keypads/elastic switch buttons

Custom silicone conductive numeric keypads combine elastic switch buttons with a contact arrangement for number input. The layout should match the circuit and enclosure while giving the user distinct pressing areas. Printed or molded identification can follow the chosen number arrangement and color.

Pay attention to release between repeated entries. A key that remains slightly depressed can behave differently from one that returns fully before the next press. Evaluate repeated numbers and transitions to adjacent keys on the assembled device, including presses made from the normal hand angle.

The conductive function needs assessment with the actual circuit and contact geometry. Keep the underside clean and locate the sheet without stretching it over the board. During maintenance, inspect for rubbing at the panel opening if release becomes slow. A changed response may originate in support or alignment rather than the material alone. Clear residue using compatible methods and correct mechanical restriction before repeated extra force damages the flexible region or contact surface beneath a key.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Assess the silicone grade during repeated numeric entry and transitions, with the keys pressed from the normal hand angle and allowed to return fully.

Custom dimensions

Coordinate numeric-key centers, cap size and board contact positions, leaving clearance for presses from the normal hand approach.

Fit & assembly

A changed response may originate in support or alignment rather than the material alone.

Use & inspection

Clear residue using compatible methods and correct mechanical restriction before repeated extra force damages the flexible region or contact surface beneath a key.

Photos illustrate structure or material only. The layout should match the circuit and enclosure while giving the user distinct pressing areas. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.