Scratch panel
The scratch panel is an opaque layer of special paint, under which there is classified information. Enlighten or read the scratch panel will not work even with the help of equipment. Only the owner of the card can receive the data by erasing the protective layer. It won't be possible to restore it.
This decor is also used to protect against forgery. The design of the card with the scratch panel is created based on the requirements of the customer.
Most often, the scratch panel is used on RFID payment or activation cards. Under the protective layer, you can print a pin code, password or other private data.