Custom made elastomer silicone buttons various keypad

Custom elastomer silicone buttons provide the flexible input surfaces of an electronic keypad. The shape of each key should suit the area that a user will actually press, including the approach direction and nearby controls. The molded rubber needs to move freely within the enclosure rather than relying on the housing to hold a distorted key in place.

Evaluate a prototype with the board and front panel assembled. Press the center and the ordinary edge contact areas, then check that the button returns fully after release. A key reached obliquely may need different clearance from one approached straight on. Keep visible identification aligned with the functional input beneath it. During fitting, avoid trapping connecting rubber under a post or screw feature. If a button begins responding differently after service, inspect the pad's locating position and underlying clearance before altering the rubber. Clean debris from around the exposed key without scraping thin edges, and replace a torn section instead of using enclosure pressure to keep it operating temporarily.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Press the center and the ordinary edge contact areas, then check that the button returns fully after release.

Custom dimensions

The shape of each key should suit the area that a user will actually press, including the approach direction and nearby controls.

Fit & assembly

The molded rubber needs to move freely within the enclosure rather than relying on the housing to hold a distorted key in place.

Use & inspection

Clean debris from around the exposed key without scraping thin edges, and replace a torn section instead of using enclosure pressure to keep it operating temporarily.

Photos illustrate structure or material only. The molded rubber needs to move freely within the enclosure rather than relying on the housing to hold a distorted key in place. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.