I got a machine in today, a little one, couldn't pass it up. Major cosmetic
issue is it sat too near a concrete pour or something and got spattered a long
time ago, and, like most construction machinery, never got cleaned off. It
doesn't affect the function but I don't like it and want to remove it. Stuff is
tenacious! I want to remove the concrete but leave the paint, decals etc. alone.
Any ideas? I've only tried 409 and a rag and the edge of a credit card so far.

GWE