Before its use, carefully wash the vehicle and wipe it dry. 

Spread the paste evenly with a cloth in a thin layer onto an area of about 40x40 cm (1.3x1.3 feet) and before complete drying - upon the appearance of white stains - polish it with a dry, soft and preferably lint-free cloth. 

It can be used for metallic paints as well.
In case of repainted chassis, perform a test on a not visible area.