Flexible transparent silicone rubber membrane keypad/buttons

A transparent silicone rubber membrane keypad should sit without creases in the areas intended to flex. The clear molded form can make some local distortion easier to observe, but the hidden seating and actuation points still need inspection before the housing closes.

ETOL offers custom shapes, sizes, colors and material constructions. Compare the membrane's locating features with the panel and underlying circuit arrangement. Keep the web relaxed instead of pulling one corner to bring an opening into alignment.

During assembly, protect the transparent surface from scratches and trapped residue. Inspect around each key for a folded region, then check movement and electrical response with the complete control. Evaluate any required environmental function on the finished enclosure rather than the membrane alone. During cleaning or service, use methods compatible with the selected material and surface construction. If the keypad is removed, support its larger areas instead of pulling it out by one key. Replace a torn or permanently creased component before the control is assembled again.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A transparent silicone rubber membrane keypad should sit without creases in the areas intended to flex.

Custom dimensions

Keep the web relaxed instead of pulling one corner to bring an opening into alignment.

Fit & assembly

The clear molded form can make some local distortion easier to observe, but the hidden seating and actuation points still need inspection before the housing closes.

Use & inspection

During cleaning or service, use methods compatible with the selected material and surface construction.

Photos illustrate structure or material only. If the keypad is removed, support its larger areas instead of pulling it out by one key. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.