rubber button membrane keyboard silicone switch buttons

A rubber button membrane keyboard needs support between its controls as well as beneath individual switching positions. The silicone sheet should remain located while each button moves through its intended travel. A large unsupported region can allow a press to deform neighboring material, making the internal support arrangement relevant to the complete input design.

Coordinate key spacing, enclosure openings, and contact positions. The perimeter should be retained without pulling the sheet out of its natural outline. Choose legends and colors for the intended layout and check visibility once the keyboard is installed.

Keep the switching region clean during assembly and test every input after the housing is fully fastened. Include presses near row ends and combinations relevant to normal use. During maintenance, inspect shared support if several keys change feel together. Avoid adding improvised backing beneath one area, since it can alter travel and contact across the common sheet instead of restoring the designed support geometry.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A large unsupported region can allow a press to deform neighboring material, making the internal support arrangement relevant to the complete input design.

Custom dimensions

Coordinate key spacing, enclosure openings, and contact positions.

Fit & assembly

Keep the switching region clean during assembly and test every input after the housing is fully fastened.

Use & inspection

During maintenance, inspect shared support if several keys change feel together.

Photos illustrate structure or material only. The silicone sheet should remain located while each button moves through its intended travel. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.