so well to polish brass, but other auto products do not. I have used nu finish as an additive with good results. on a whim, while shopping at WM, I bought some chrome cleaner to try to see if it would be a good substitute for nufinish. It was quite a bit less expensive. the chrome polish worked, but the brass came out dull instead of shiny like NF. So does NF polish by chemical or abrasive?