Custom made rubber silicone keypad button

A silicone keypad button should move independently within the support provided by its surrounding rubber and housing. The visible key shape needs to correspond to the travel and switching position beneath it. A button can be correctly centered from above yet still be constrained by a trapped flange or an incorrectly supported lower region.

Define the locating features, opening clearance, and intended press direction. Select markings and colors around the function while preserving the space needed by the moving wall. Keep the contact region clean during assembly.

Fit without stretching the rubber into place and test with the actual electronics after the enclosure is fastened. Check off center presses and verify full return. During maintenance, inspect the supporting sheet and housing opening if the key begins sticking. Replacing only the visible button geometry may leave an underlying alignment or support problem unresolved, so preserve the designed relationship between the top, flexible region, and switch contact when choosing a replacement.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Check off center presses and verify full return.

Custom dimensions

Define the locating features, opening clearance, and intended press direction.

Fit & assembly

Fit without stretching the rubber into place and test with the actual electronics after the enclosure is fastened.

Use & inspection

During maintenance, inspect the supporting sheet and housing opening if the key begins sticking.

Photos illustrate structure or material only. A silicone keypad button should move independently within the support provided by its surrounding rubber and housing. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.