Silicone elastomer conductive button keypad

A silicone elastomer conductive button keypad operates as part of a matching electrical contact arrangement. The conductive areas and key movement must align with that pattern so the intended control responds when pressed. The molded sheet should also fit the enclosure without a key edge being held down or dragged sideways.

Develop the layout and contact positions using the actual board and housing stack. Check the clearance around each moving key after the panel is assembled. A conductive construction does not define a particular contact resistance, travel or switching life on its own; those characteristics need evaluation in the selected design.

Keep the contact side protected during assembly and avoid touching it with contaminated tools. Test the finished keypad using realistic press locations and sequences, checking both activation and return. During maintenance, inspect for residue, wear and alignment changes before assuming a response problem comes only from the rubber hardness. Any replacement should retain the specified contact geometry as well as the visible key layout.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The conductive areas and key movement must align with that pattern so the intended control responds when pressed.

Custom dimensions

Develop the layout and contact positions using the actual board and housing stack.

Fit & assembly

Check the clearance around each moving key after the panel is assembled.

Use & inspection

During maintenance, inspect for residue, wear and alignment changes before assuming a response problem comes only from the rubber hardness.

Photos illustrate structure or material only. The molded sheet should also fit the enclosure without a key edge being held down or dragged sideways. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.