It makes sense to regularly repair minor damage to the lacquer coating, as this avoids corrosion and subsequent major repairs.
To eliminate minor scratches and traces of stone impacts that only caused the surface layer of varnish to chip off, a tube of varnish is generally sufficient. In addition to this drip coating and a small brush, the self-adhesive film offered by the commercial network also helps if the damage is very minor or only a primer coat is applied.
For deep stone impact marks that already have rust growths, clean out with a rust remover, knife or small screwdriver until bare metal is exposed. It is important that no such places with rust are visible anymore. Rust remover refers to small plastic bushings that have wire bristles to remove rust.
Bare metal must be perfectly dry and free of grease. To do this, clean repair areas and surrounding varnish with a silicone remover.
With a thin brush, apply a little primer to a bare metal surface (Primer). Since primer is mostly sold in aerosol cans, spray some primer into the top of the can and dip the brush into it.
After the primer dries, apply a small amount of varnish to the damaged area. In jars with varnish, the brush is already mounted in the lid of the jar. If only an aerosol can of suitable paint is available, spray some paint into the lid of the can and then apply the lacquer with a thin brush for waterproof paint. At the same time, apply only one thin layer of varnish in one working operation so that it cannot flow down. After that, dry the paint well. Repeat the process until the dent is filled and the repaired area no longer forms depressions in relation to the surrounding paintwork.