Electronic silicone rubber buttons conductive keypads

Silicone rubber buttons form a flexible operating layer for an electronic keypad. In a conductive design, the movement of the molded key brings its contact area into the required relationship with the circuit beneath. The button layout can be customized to suit the product housing and the intended set of functions.

Reliable operation begins with mechanical alignment. The key centers, board contacts, and housing apertures should correspond in the assembled position. The rubber also needs room to return after a press; a surrounding edge trapped beneath a panel can change the movement even though the visible face looks normal.

Check the electrical response after the case fasteners have been secured, because this is when the keypad reaches its final compression and spacing. Test brief presses, sustained presses, and neighboring controls according to the intended interface behavior. Keep contact surfaces clean during assembly and avoid unnecessary handling of the underside. If a key feels different from the rest, inspect its seating and clearance before assuming the circuit is responsible.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The rubber also needs room to return after a press; a surrounding edge trapped beneath a panel can change the movement even though the visible face looks normal.

Custom dimensions

The key centers, board contacts, and housing apertures should correspond in the assembled position.

Fit & assembly

If a key feels different from the rest, inspect its seating and clearance before assuming the circuit is responsible.

Use & inspection

Keep contact surfaces clean during assembly and avoid unnecessary handling of the underside.

Photos illustrate structure or material only. In a conductive design, the movement of the molded key brings its contact area into the required relationship with the circuit beneath. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.