We can manufacture various of membrane overlay, which is made of PET, with high quality, the color due to Pantone and RAL syste 

Specification:

1 Overlay Materials: The most commonly used base 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

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.