Molded black flexible silicone rubber prototype switch buttons

Custom silicone rubber prototype switch buttons let a control geometry be assessed with its intended housing and actuation arrangement. The useful evaluation includes the support beneath the switch as well as the feel of the molded button itself.

ETOL can customize dimensions, shape, color and selected material construction. Establish the design features under review, such as resting clearance, key height or edge guidance. Compare versions in the same assembled conditions so a change in housing support does not obscure the effect of the button geometry.

Check center and off-center presses, return after release and response through the actual circuit. Inspect the flexible web for stretching introduced during fitting. A prototype that works while held loosely should also be assessed with the cover and fasteners in their intended positions.

Keep the contact and visible surfaces clean between assembly trials. If a key binds, identify whether the cause is its profile, the panel opening or the internal stack rather than trimming several regions at once. The resulting production part should follow the evaluated geometry. Replace damaged trial components when assessing fit so a torn or permanently stretched sample does not give a misleading impression of the intended response.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Check center and off-center presses, return after release and response through the actual circuit.

Custom dimensions

If a key binds, identify whether the cause is its profile, the panel opening or the internal stack rather than trimming several regions at once.

Fit & assembly

Compare versions in the same assembled conditions so a change in housing support does not obscure the effect of the button geometry.

Use & inspection

Replace damaged trial components when assessing fit so a torn or permanently stretched sample does not give a misleading impression of the intended response.

Photos illustrate structure or material only. If a key binds, identify whether the cause is its profile, the panel opening or the internal stack rather than trimming several regions at once. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.