and on concrete crash barriers. I was entering the 407 from 401 Monday, a windy day, and some guy was spraying it on concrete barrier section. It blew onto my ( white ) but it also go on the windscreen. Not such that I could not see. The wipers and wshers did not shift it. When I got home I used Invisible glass and a terry cloth towel. Got rid of most of it with much rubbing. Is there a way, short of a clay bar to get it off the paint.