We are frequently asked if we can replace old membrane keypads with a new PCAP design. It makes sense, as the membrane design can present many problems – particularly as it ages. Simply put, membrane keys are less durable and their PET foil, which controls responsiveness, can and will break with frequent use.
Take a look at the membrane key design below to see the enormous potential for malfunction. Here we have some mechanical keys, which are protected by a membrane and backlit from beneath. It comprises a huge number of layers.