Laser Etched Rubber Keypad

CharacteristicsConductorInsulatorMaterialCarbon PillSiliconeDurometer (Shore A)65±530-80 +/-Tensile Strength (kg/cm2)=60=70Tear Strength (kg/cm)>9>12Compression Set (%) after 22hrs at 175?<30<35After 22 hrs at 175? Specific Gravity at   25?1.181.11-1.18Volume Resistivity(Ohm/CM)2-101x1015Contact Resistance=200ohm at 12V DInsulations Resistance=100Mohm at250V DCMax Contact Loading24V dc 100mAOperation Temperature-40? to +150?Storage Temperature-50? to +180?Surface FinishingPrint silicone oil, inferior silicone oil, PU oil,                       drop glue, plastic joint, laser, PC   joint> What
Laser Etched Rubber Keypad