Application:Home Appliances,Communication equipment,computer keyboard Keypad Button Material:PET,PC,Silicone,Acrylic Design:CAD/AI/CDR format Certification:ROHS,REACH,CE,IS Test:100%QC Material:PET,PC,Silicone,Acryliy Color:According to pantone color number Back-adhesive:3M467,3M468,or others Factory Experience:16 years customized factory. A typical membrane switch is a momentary, normally open switch created using a conductive stainless steel dome and its contact with a conductive printed circuit.