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.
How to touch up clear coat on door handles.
Dry the paint with clean towels.
I use a much more caustic stripper with the viscosity of water.
Spray a total of three coats of clear coat.
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.
It wouldn t hurt and might help.
Good luck with your project.
Let the clear coat dry for three hours or as recommended by the manufacturer.
Start with something rougher and work your way progressively to a higher grit smoother.
Spray a coat of clear coat onto the car door handles.
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.
Remove the masking tape from the edges of the car door handles.
Mine held up well something i would attribute to having roughened up the hardware by sanding first.
Cover door handles keyholes door guards and trim pieces.
You could certainly try a clear coat.
If a door or fender panel needs clear coat mask off the seam of the panel.
I reinstalled the door hardware being careful to not scratch the knobs as i screwed them in.
Ultraviolet light slowly degrades the outer layer of paint protection burning it white and rough.
I put a piece of painter s tape around each knob to ensure this wouldn t happen.
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.
If the clear coat damage is confined to a local area wash the area removing all oil dirt and wax.
Jasco or a similar product.