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Overlay (Label, Graphic overlay,overlay keypad) 1 Overlay Materials: The most commonly used materials are polyester(PET) and polycarbonate(PC). 2 Rear Adhesive: 3M 467MP, 3M 468MP, etc. 3 Matching color: Pantone and RAL color matching system. 4 Gloss, semi-gloss or matte 5 Non-tactile,poly dome or metal dome 6 Standard Tolerances: +/-.010 inch (+/-0.25mm). Performance Electrical Operating Voltage: 0 35 V DC. Operating Current: 100 MA Max. Operating Contact Resistance: Less than 100 OHMS typical Contact Bounce: Less than 5 Milliseconds typical. Conductors: Printed silver conductive inks or carbon blend. RFI and ESD Shielding: Available in most configurations. Mechanical Life Expectancy: 1,000,000 actuations per switch position Actuation Force: 6 24 ounces (170 680g), Range depending on customer specification. Switch Travel: .005" to .030" (0.1 0.8mm) typical. Overall Thickness: .020" to .050" (0.5 1.3mm) typical. Environmental Storage Temperature: -40°C (-40°F) to +70°C (158°F). Storage Altitude: Sea level to 35,000 feet. Operating Temperature and Altitude: -30°C (-30°F) to +75°C (170°F). Can be designed to operate in most environments. Humidity: No delamination after 24 hours at 80°C and 90%RH.