Flexible molded heat-resistant rubber buttons/silicone keypads

Rubber buttons used in a warm control housing should be evaluated after the assembly reaches its normal operating condition. The silicone geometry, surrounding opening and underlying actuator all influence return after release. A button that moves freely in an unheated sample may have different clearances once the housing and internal components are warm.

Custom molded dimensions and colors allow the keypad to fit the control layout. Select the compound using the temperature at the button position and the duration of exposure, including any cleaning chemicals used on the surface. The relevant conditions should be assessed on the complete control assembly.

Check repeated presses at the center and near the edges, then observe whether the button returns without rubbing against the cover. Include cooling and restarting where those are part of normal equipment use. A persistent lean or crease can point to uneven clamping or insufficient clearance. Keep the openings free of residue during maintenance, and inspect the keypad's locating areas if several neighboring buttons begin to respond differently at the same time.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. Check repeated presses at the center and near the edges, then observe whether the button returns without rubbing against the cover.

Custom dimensions

The silicone geometry, surrounding opening and underlying actuator all influence return after release.

Fit & assembly

Select the compound using the temperature at the button position and the duration of exposure, including any cleaning chemicals used on the surface.

Use & inspection

Keep the openings free of residue during maintenance, and inspect the keypad's locating areas if several neighboring buttons begin to respond differently at the same time.

Photos illustrate structure or material only. A button that moves freely in an unheated sample may have different clearances once the housing and internal components are warm. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.