The paint on my wiper arms is fading / wearing off with the result that the metal is starting to show through. I was planning on touching them up with a spray bomb. Most of the trim paints that I have seen tend to have more of a satin finish and the wiper arms appear to be a flat black (at least it is flat black now). Has anybody done this and have any suggestions for a suitable paint? I was thinking about the Eastwood Rust Encapsulator (which has a really flat finish) or the Eastwood flat chassis black.