After leaving my car in a parking garage I have what looks like dried cement dust on the front of my car. I've found I can get it off the paint with a scratch remover, but the clear bra looks terrible.

I'm afraid that I would scratch the Clear Bra with anything else I use. Anyone have experiance with this?

 

Someone suggested Vinegar and it worked great! Just wash your car afterwords, or it'll smell kinda funny....