Use this Badge Fix Glue to stick on your badges.
It is an alternative to needle and thread and a lot quicker.
The adhesive now used is Loctite 595 which is an upgrade of the previous glue.
The glue is washer and dryer safe.
It is suggested to allow 24 hours to have maximum adhesive strength
It has a removable nozzle for application.
(Glue tube design may vary and may say silikon, silicone or adhesive but its all the same.)
Glue comes from Official Scouting but can be used for any badges.