Can you not just tape it into place?
Sticky tape.
Why are you putting a magnet in a card. Won’t that mess up the data stored on the card while being read by the magswipe machine
The magnetic strip is what holds the info on the card. 🤦♂️
OP: Is there any reason you can’t just get a new one issued?
This is a non-recharghable magnet paper card from the Bucharest Metro Its just curiosity, I took the strip from a good card, sticked it to aother good one but it wasnt strong enough. Thinking about trying it again when im in Bucharest 1 month later
If I had the misfortune to be required to attempt this for some reason, I would use CA glue and a very steady hand, as well as an edge to smooth the strip once applied.
Clear sticky tape does the trick.