Want to prep my windshield prior to applying Aquapel Glass Treatment. Read regular wash and cleaning doesn't provide a good enough prepped surface to apply AGT.
I use Klasse AIO every wash to 1. get rid of water spots if any 2. put down a nice layer of protection and a slick surface for water to bead right off. If there are some bad spots or 2x a year i use SSR 1 to polish the surface by hand to get rid of bad spots.