I originally used a clay bar, then polish, then wax to clean my front windshield. It looked pretty good but I wanted to get rid of some water spots. So I used undiluted white viegar with a sponge. I probably spent a half hour going over the windshield with the sponge, rinsing as I went, then washed and dried my windshield like regular. It didn't get rid of the water spots, in fact, it made them worse. Especially at night, it looks like the waterspots multiplied and is worse than any windshield I have ever sat behind!!

So...what the heck now? Try the clay bar again? Get a more aggressive clay bar? More vinegar? Different product? Seek a professional? HELP! I'm going on a 2-day drive next week and I don't want to drive it that way!!

Tony

 

I have felt your problem, as I had very bad water spots. I tried every glass cleaner I could find, even with those Scotch-Brite pads. Vinegar didn't work. Ammonia didn't work. Car polish didn't work. Then I took my car to a glass shop, and asked them. The man tried a product on my mirror, saying he wouldn't sell it to me if it didn't work. Worked perfect! It's Duragloss Nu-Glass. You buff it on, let haze, then buff off (I found a little pressure helped remove the spots quicker). I was only able to find it at a glass company specializing in automotive glass locally. But my brother-in-law found some at www.brandsupermall.com/nuglass (1-866-498-3448) for about $12.50 shipped for 2 bottles. All of my glass is spotless, and it only took 1/4 of the first 8 oz bottle (I have another bottle now for the future). After I got them clean, I applied RainX (original) to all of my glass, and they have been spotless for 2 years now. I also clean my glass pretty much daily, or atleast whenever water contacts them (I carry a squeegee in my trunk). I think vigilance is key to preventing water spots. But the Duragloss worked wonders. If it can't remove them, I think you may need to have them professionally removed by a machine.

Dave

 

Similar to Dave's advice, what he used was a glass polish. A few companies (didn't know Duragloss sold one) make glass polish: Autoglym (easiest to find), Zaino, and One Grand for starters. No Touch also makes something like this but I've heard less good feedback about it. Sometimes glass shops will carry these glass polishes. I've also seen some water spotting like that and also found vinegar didn't help either. It's not easy to polish out water spots like these by hand (depending on how bad they are) but it definitely works.

Also maybe try 0000 grade steel wool, which is supposed to clean very well but doesn't scratch. Just don't use it on aftermarket tint film.

I've found Aquapel protects against future water spotting, but I bet Rain-X would help too...