conductive silicone prototype keypads/elastic key buttons

Silicone prototype keypads allow a proposed button arrangement to be assessed against its intended enclosure and input mechanism. The useful evaluation goes beyond the visible pattern: locating features, key travel and contact registration need to work together. A loose prototype can feel different from the same geometry captured inside a housing.

Use a representative assembly when checking finger access and the separation between neighboring keys. The circuit contact positions and supporting surfaces should correspond to the planned design so an alignment issue is not mistaken for an unsuitable button profile. Any conductive features need their own evaluation in that arrangement.

The prototype should not be assumed to establish production tolerances, operating life or a final electrical specification. Record the geometry chosen for the finished configuration and assess it accordingly. During handling, keep thin web sections and contact surfaces undamaged so repeated assembly does not introduce an unrelated fault. Inspect seating whenever the enclosure is reopened before comparing the feel of successive design changes.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The useful evaluation goes beyond the visible pattern: locating features, key travel and contact registration need to work together.

Custom dimensions

The circuit contact positions and supporting surfaces should correspond to the planned design so an alignment issue is not mistaken for an unsuitable button profile.

Fit & assembly

During handling, keep thin web sections and contact surfaces undamaged so repeated assembly does not introduce an unrelated fault.

Use & inspection

Inspect seating whenever the enclosure is reopened before comparing the feel of successive design changes.

Photos illustrate structure or material only. The circuit contact positions and supporting surfaces should correspond to the planned design so an alignment issue is not mistaken for an unsuitable button profile. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.