Originally Posted By: willbur
Thanks for the tip Garak.
No problem. I always buff a second time, no matter what I use, since there's a very good chance I'm going to overdo it, particularly if I'm doing a very dirty windshield. It's easy to dose lightly when doing a light haze, but if you've got bugs, or a lot of road film, or actual dirt, it's far too tempting to bathe the glass in the stuff.
So, I don't bother resisting the temptation and just go over it again. By the way, as a buffing cloth, some of those microfiber cloths that are advertised for glass specifically seem to work really well.
For those who have stuff that's really, really difficult to get off, like Rain-X or whatever other messes one can imagine, the Rain-X X-Treme Clean does a pretty amazing job. It's a little messy to use, but if you have something problematic on the glass, it's worth a shot. It's not something you'd want to add to a daily glass cleaning regimen, though, unless that regimen included cleaning a few million bugs of a windshield daily or something like that.