... coating, laser etching, back-lighted, hard/epoxy .. Membrane keypads/keypads/silicone keypadApplications: Security Systems ,Computer and Peripheral Equipment ,Medical ... 70 shore A. suggested hardness for silicone rubber keypads is 40 to 60shore A depending on customers' ... coating, laser etching, back-lighted, hard/epoxy coating keypads 08) Keypad surface with transparent spraying coating, PU coating ...