Control Panels With Lexan Windows and Membrane Buttons

On the control panels of electronic devices and machinery, not only durability but also the clear visibility of indicator lights and comfortable button operation are critical. Control panels with lexan windows and membrane buttons are a specialized manufacturing technique that meets both needs at once.

What Is a Lexan Window, and Why Is It Used?

Lexan (polycarbonate) is a transparent, flexible plastic material with high impact resistance. Placed over LED indicator lights, digital displays or status lamps on control panels, it lets the light show through clearly from the outside. It also protects sensitive electronic components from dust and moisture.

How Does a Membrane Button System Work?

Membrane buttons are a thin, flexible layer that completes the electrical circuit underneath when pressed on the panel. Unlike metal or hard plastic buttons, they contain no moving mechanical parts, providing far higher protection (typically IP65 and above) against dust, moisture and liquid ingress.

Which Sectors Use This?

• Industrial Automation: Machine control panels and PLC interfaces.
• Medical Devices: Hospital equipment panels requiring hygiene and frequent disinfection.
• White Goods and Electronics: Control and setting panels.
• Vehicle and Heavy Machinery Cabins: Vibration-resistant indicator and control panels.

How Is It Combined With a Metal Label?

Lexan-windowed membrane panels are usually designed together with a surrounding metal control panel label frame. The metal frame provides sturdiness and a professional look, while the clear window in the middle lets indicator lights show clearly. This combination is especially popular in aviation and heavy-industry control panels.

How Long Does a Panel Design Take?

A simple control panel design is usually ready within 1-2 days. Complex panels with many buttons and indicators can take a bit longer.

During the design phase, we review the button layout together with you. This lets us catch and fix potential usage errors before production begins.

If you have a control panel project with indicator lights or touch buttons, you can get a feasibility assessment by sharing your technical drawing through contact.