I got an aluminum sign with a graphic print on itI want to wipe it clean because it has a spec or two of dirt and some finger print smudges on itI was thinking of using some Windex and wipe it off with a paper towel, but wasn't sure if the Windex would damage the print on the sign?
I use Fantastic spray or 409 and a soft cloth, not a paper towelPaper towel are made from wood and scratch.