safelder

A buddy of mind has some weird drip markings on his rear glass that he thinks came from a leak dripping through the concrete ceiling of his parking garage. It doesn't feel (or look) like etching to me; it feels and looks like a surface deposit. Neither vinegar nor glass polish worked. Does anybody have any other thoughts, short of replace the glass?

nynyvtecjstkickdinyo

what Glass Polish did you use?

I would try to clay the glass then a glass polish with a PC and a white or yellow pad.

safelder

Yes, Griot's fine polish. Didn't try the PC b/c driveway was an ice sheet. thx.

WithanF

I clean my fireplace doors with metal polish, the stuff you use for brass, etc. It does NOT scratch at all. It really cleans well. I would not hesitate to use it on my windshield.