Auto grade Magnetic Rubber. Removable or permanet signage for when you need to be able to chane your signage. Magnetics can be added to an Metal A Frame fo the use of a special or a blurb (eg. Book Today or Last Days). Magnetics suit almost any flat surface and stick very well, but please be aware of body lines of the car, because if the wind can get under just a little edge of the sign it may be blown off at speed.
There a a few areas of concern with magnetics as well, to help avoid unwanted damage to paintwork or magnetic sign.
1. the paintwork under the sign should be clean from dirt before application.
2. do not slide the sign around the panel to line it up, remove the sign and replace it in the right place
3. when storing the magnetic sign, store it flat and do no fold
4. Magnetics are consider safe to speeds up to 120km per hour provided care has been taken with maintaince and application.
5. It is advisable to remove you magnetics regularly to clean underneath.