Heat-resistant waterproof conductive silicone keypad button

A conductive silicone keypad button combines a flexible molded surface with an electrical contact function. For equipment that encounters heat or moisture, the silicone formulation and the surrounding enclosure need to be selected together. The button is one part of that protective system, alongside panel contact and internal support.

Identify the expected exposure at the control face. Occasional splashes, cleaning and warmth from internal components may affect different regions of the part. Select the compound and finish for those actual conditions, then check how the button moves after the complete assembly has experienced them.

The conductive feature must remain aligned with the board contact while the rubber is retained around the panel opening. Excessive compression at the perimeter can change the key's resting position, and a gap near the key can affect the intended moisture boundary. Evaluate both movement and environmental performance with the final housing secured.

Custom dimensions and colors allow the control to fit the equipment layout. Keep the underside clean during assembly, and inspect the key edge for rubbing when operated from different directions. During servicing, restore the original support spacing and seating rather than tightening the housing further to address an intermittent response. That can alter the contact force without correcting its cause.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Excessive compression at the perimeter can change the key's resting position, and a gap near the key can affect the intended moisture boundary.

Custom dimensions

The conductive feature must remain aligned with the board contact while the rubber is retained around the panel opening.

Fit & assembly

Keep the underside clean during assembly, and inspect the key edge for rubbing when operated from different directions.

Use & inspection

During servicing, restore the original support spacing and seating rather than tightening the housing further to address an intermittent response.

Photos illustrate structure or material only. The button is one part of that protective system, alongside panel contact and internal support. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.