Membrane switches can be made in a variety of materials and often the right material comes down to the needs of the customer. It is best to have your engineer at KEE Group USA review your blueprint to determine what type of graphic overlay will be used and then decide what type of material will make up the main membrane switch components.
A non-tactile switch is more widely used and is more reliable than a tactile switch. They are also more economical to create, because they do not require as much high-end material to produce. There is a disadvantage to these types of membrane switches though, and that is that the non-tactile designs do not receive direct feedback.
Tactile membrane switches are more like traditional buttons and have that