Conductive silicone rubber keypads/durable silicone buttons

Silicone rubber keypads use a flexible web to connect and locate buttons within an assembly. That web needs enough room to behave as designed without being pinched by the enclosure or pulled across misaligned locating features. Its condition can influence several keys at once, making it worth checking alongside the individual button tops.

Match the conductive contact positions and travel to the circuit and support beneath the sheet. The housing openings should leave clearance for the intended movement, including off center presses. Select legends and colors around the final control layout while preserving the underlying geometry.

Fit the keypad flat and test operation after all fasteners reach their intended assembly condition. Inspect the perimeter and regions between keys if return feels uneven. During service, keep debris out of the openings and use care when lifting the sheet from its locating features. A tear in the connecting web should not be ignored simply because the visible buttons still look intact, since the sheet may no longer hold the designed alignment.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The housing openings should leave clearance for the intended movement, including off center presses.

Custom dimensions

Match the conductive contact positions and travel to the circuit and support beneath the sheet.

Fit & assembly

Fit the keypad flat and test operation after all fasteners reach their intended assembly condition.

Use & inspection

During service, keep debris out of the openings and use care when lifting the sheet from its locating features.

Photos illustrate structure or material only. The housing openings should leave clearance for the intended movement, including off center presses. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.