Clear dewaxed shellac is the safest option because it sticks to almost all finishes and most finishes stick to it so using that gives you the option of refinishing the whole door later.
How to touch up clear coat on door handles.
I put a piece of painter s tape around each knob to ensure this wouldn t happen.
I didn t see where you said you d sprayed a clear coat on your doorknobs so this may be something for you to consider and test for longevity of the finish.
Remove the masking tape from the edges of the car door handles.
The author suggested spraying a clear acrylic coat on doorknobs as a means of protection not only from the elements but from scratching the paint off due to handling keys etc.
I reinstalled the door hardware being careful to not scratch the knobs as i screwed them in.
Spray a coat of clear coat onto the car door handles.
In response to the baldwin clear coat a commercial paint stripper will remove the urethane coating.
Use plumber s blue tape and masking paper to mask off the area to be repaired.
Jasco or a similar product.
Mine held up well something i would attribute to having roughened up the hardware by sanding first.
After refinishing your old door hardware you might notice that some of the paint in the middle of the screw heads might have come off when you installed them.
Cover door handles keyholes door guards and trim pieces.
Spray a total of three coats of clear coat.
You could certainly try a clear coat.
I use a much more caustic stripper with the viscosity of water.
Ultraviolet light slowly degrades the outer layer of paint protection burning it white and rough.
If the clear coat damage is confined to a local area wash the area removing all oil dirt and wax.
Clear coat damage is caused by a number of factors but the primary culprit is the sun s uv rays the same rays that crack your dashboard fade your carpets and cloth upholstery and cause plastic rot on interior trim panels.
Dry the paint with clean towels.
Good luck with your project.
It wouldn t hurt and might help.