My windshield is 23 years old and pretty scratched up. Since I have the Hercules forced rotation machine I decided to try polishing the windshield. I used a really stiff blue pad I got from a local paint supply store and Zaino glass polish I had in my box of stuff. I'm not sure what's in the Zaino glass polish but with several passes, working it until it dusted, it made a nice improvement. I didn't have an issue with splatter but it dusted a lot. I just used a blower to clean the car off.