Custom silicone power button various rubber keypads

A silicone power button provides a flexible input face for a compatible electronic control. Its custom shape should fit the housing and transfer a press to the intended switching arrangement below. The resting position is as important as the available travel, because the key needs to release completely after use.

Check the button with the enclosure secured. A panel edge pressing on the rubber can hold it partly down, while an unsupported underside may require excessive movement before contact occurs. Align the locating features and internal support before judging the feel.

Evaluate presses near the edge as well as at the center. The key should return without rubbing or remaining tilted in the opening. Keep the underside clean during assembly and protect any contact region from adhesive or handling residue. During repairs, restore the original spacing between the button and the board. Increasing housing pressure to fix an intermittent input can change the resting position instead of solving the alignment problem. Use a replacement with the intended molded geometry so the power control keeps its designed operation.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A panel edge pressing on the rubber can hold it partly down, while an unsupported underside may require excessive movement before contact occurs.

Custom dimensions

The resting position is as important as the available travel, because the key needs to release completely after use.

Fit & assembly

Increasing housing pressure to fix an intermittent input can change the resting position instead of solving the alignment problem.

Use & inspection

Keep the underside clean during assembly and protect any contact region from adhesive or handling residue.

Photos illustrate structure or material only. A panel edge pressing on the rubber can hold it partly down, while an unsupported underside may require excessive movement before contact occurs. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.