Flexible silicone key buttons/clear rubber numeric keypad

A clear rubber numeric keypad can be customized with flexible silicone key buttons for a device interface. The clear appearance needs to be considered alongside the background, labels and housing around the keys. Custom dimensions and printed or molded identification allow the layout to follow the intended product.

Check readability in the finished assembly. A number that is obvious on a loose sample can become harder to distinguish over a patterned or dark background. The transparent material does not by itself establish a backlighting arrangement, so assess any illumination with the complete device design.

Mechanically, each button needs sufficient movement and a free return within its opening. Trial numeric sequences with the device held or mounted as intended, watching for neighboring keys moving together. Use a cleaning method suited to the silicone and markings, and clear residue from the key boundaries. If the response changes after reassembly, inspect the pad's seating and board position before assuming the clear material needs to be made softer or pressed harder.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Mechanically, each button needs sufficient movement and a free return within its opening.

Custom dimensions

Custom dimensions and printed or molded identification allow the layout to follow the intended product.

Fit & assembly

If the response changes after reassembly, inspect the pad's seating and board position before assuming the clear material needs to be made softer or pressed harder.

Use & inspection

Use a cleaning method suited to the silicone and markings, and clear residue from the key boundaries.

Photos illustrate structure or material only. A clear rubber numeric keypad can be customized with flexible silicone key buttons for a device interface. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.