Last night after leaving my car in a parking deck all day, I noticed large stains that appeared to be bird doodie. But after closer inspection they appear to be either calcium or lime that had dripped off the ceiling of the garage onto my car. I was able to remove most of the stains with quick detailer and a microfiber cloth, but there is one large stain that ran down the side of a rear quarter panel. It feels really rough to the touch, but seems to on the paint versus etched into the paint. Does anyone have any ideas how to get this off without sanding and repainting the panel?



cp