Worked excellent on my 15yr old (170k miles) windshield.
July 16, 2014
I used Ceriglass with 3" rayon glass correction pads, a 3' backing plate, and my dewalt rotary buffer to correct VERY sever wiper marks on my daily driver's windshield. It is a slow and messy process(totaled nearly 2 hours of buffing!), but much more satisfying than replacing the windshield. I purchased the 150ml bottle to try out on my daily and will soon be ordering a 500ml bottle for the windows on my restoration project(1971 VW westfalia) for which several windows are no longer available new.(hence the test on my daily driver first) I can't wait after seeing the great results of the ceriglass polish on my windshield every day.
Pros:rather simple to use
did I say messy!