OK.. Really wierd discoloration on my windshield. :(

[Marc Hufnagel]

OK, subject is a 2000 Jeep Cherokee. As you can see from the pic, anywhere the wipers don't touch, I have what looks to be a greasy discoloration. You can see it in the pics, look for the wiper arc and see the color change in the picture.

Clay won't remove it, nor will cleaner wax, nor vinegar. You can't feel it, and it is somewhat dappled and a bit uneven. It can't be seen from inside the vehicle looking out. I doubt it's a lamination problem since it appears to be on the top layer of glass and follows the wiper path.

I've changed the wipers, but feel that this has been on there a while, I just got the Jeep in late Feb.

As one person suggested a glass polish, would I use it with a PC or ? I've never polished glass before and am just starting to really get into detailing the vehicle.

Any ideas?

[Billorlando]

There is a chemical called ps2 actually it is a set of chemicals that remove light abrasions to chemical contamination on vehicles it is sold at a website called www.eastwood.com check it out ....

[jfelbab]

I've used Brasso very effectively for this purpose.

[Marc Hufnagel]

Originally posted by jfelbab
I've used Brasso very effectively for this purpose.

I"d probably want to try this method first, since I think my Mom has some around somewhere. Can I get a couple of details from you, such as applied with? and have you seen this kind of contamination before?

Marc

[jfelbab]

I used to do a lot of daily highway driving and my windshield used to accumulate a lot of road grime. It would look just like your photo. I tried a lot of glass cleaners and nothing worked. A good friend in the auto detail business recommended Brasso and I tried it and found it really worked.

I applied it with a soft terry cloth towel, let it dry to a haze, and buffed with another towel. After the brasso I cleaned the windshield with a mix of distilled water and Isopropol alcohol (75%/25%). Then applied RainX.

After that I had no marks.

[Marc Hufnagel]

I will give that a try in the morning, thank you for the tip. I'll check back in with the results.

How hard/long did you work it?

Marc

Originally posted by jfelbab
I used to do a lot of daily highway driving and my windshield used to accumulate a lot of road grime. It would look just like your photo. I tried a lot of glass cleaners and nothing worked. A good friend in the auto detail business recommended Brasso and I tried it and found it really worked.

I applied it with a soft terry cloth towel, let it dry to a haze, and buffed with another towel. After the brasso I cleaned the windshield with a mix of distilled water and Isopropol alcohol (75%/25%). Then applied RainX.

After that I had no marks.

[jfelbab]

I worked it pretty vigorously for about 5 minutes to do half the windshield. Keep reapplying if the pad begins to dry while you are scrubbing.

As I mentioned this tip came from a friend who in in the detailing business. He also drives a black limo part time and only polishes it with kerosene so I take his recommendations with a wary eye but this one works for me.

I will say the limo is flawless and has not a single swirl mark on it but I just can't believe kerosene is any good for paint. Water beads up on that thing like you wouldn't believe. He said he learned that from his father. Nothing like being up with the current technology.

[Marc Hufnagel]

well, got some bar keepers friend and used the stock hard foam pad that came with the pc. wet the pad down a bit and sprinkled some BKF on it. Ran the PC at 6 for about 10 minutes over the whole windshield. I checked quite often to make sure I wasn't doing something horrible to the glass.

About 10 minutes and after a nice sponge bath the glass is now free of that awful staining.. cool. I taped off the moulding and definitely the jeep needed a bath after all the sling-off from the pad.

thanks!