Bonding systems as alternative means of IBNS to mark stolen banknotes
To make stolen banknotes unusable, also strong and permanent glue is used in IBNS to bond the banknotes into a solid block. Removing single notes is not possible and the notes will tear into pieces.
![bonding](https://www.nbb.be/sites/nbb.be/files/styles/figure_full_width/public/media/bonding.jpg?itok=IS23am8c)