CAR - MAGNETS It is necessary to wash and dry up the car bonnet properly on the place of application before placing the magnet. The magnet must be applied in the way that it fits the car bonnet with its whole surface. It is necessary to remove the magnet before using a car wash. Magnets are washable but we do not recommend using a brush. Before reusing the magnet, it is necessary to dry up the whole magnetic surface properly. It is also essential to remove the magnet from the car and clean the magnetic surface at least once a week due to the intrusion of fine dirt and humidity under the magnet. These - together with elevated car body temperature - can possibly cause melting and irreversible adhesion of the plastic film onto the car surface. The minimum application temperature : plus/minus 10C.