Push buttons silicone rubber keypad with membrane switch

A silicone rubber keypad can provide shaped push-button surfaces above a membrane switch arrangement. The custom layout needs to align the visible controls with the switch positions and the surrounding housing. The molded rubber and the switch structure should be considered as related parts of the interface.

Check the movement available below each button. The rubber must transmit a press to the intended area without resting on the switch continuously or forcing neighboring controls to move. The housing aperture and the membrane support determine how the button travels once the enclosure is secured.

Install the layers cleanly and in the intended orientation, avoiding wrinkles or trapped edges in the assembly. Test every function after the case is tightened, including presses near the normal finger contact area. Confirm that the controls return freely and remain independent. The complete interface should be evaluated for its intended operation rather than assuming that a molded button and a membrane switch automatically form a compatible stack. During servicing, recheck alignment whenever the panel or underlying switch layer is disturbed.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The rubber must transmit a press to the intended area without resting on the switch continuously or forcing neighboring controls to move.

Custom dimensions

The custom layout needs to align the visible controls with the switch positions and the surrounding housing.

Fit & assembly

Install the layers cleanly and in the intended orientation, avoiding wrinkles or trapped edges in the assembly.

Use & inspection

During servicing, recheck alignment whenever the panel or underlying switch layer is disturbed.

Photos illustrate structure or material only. The housing aperture and the membrane support determine how the button travels once the enclosure is secured. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.