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#4677767 - 02/25/18 02:36 PM Super cleaning windshield
mclasser Offline

Registered: 04/13/13
Posts: 2123
Loc: The Northeast
My windshield has swirl marks and light scratches that cause glare at night from oncoming headlights. I'm interested in "super cleaning" my windshield to see if it helps clear up blemishes and also minimizes wiper chatter. I've never done anything to glass outside of using glass cleaner so please let me know if this procedure sounds okay:

1. Rinse windshield and dry.
2. Clean with glass cleaner.
3. Clay bar using quick detailer as lube.
4. Clean residue with glass cleaner.
5. Apply some cleaner wax by hand (I don't have a DA polisher). My hope is that the polisher part of the cleaner wax will remove the light scratches and the wax part will keep a slick surface to bead rain water up and off.

What do you guys think?
2018 Hyundai Elantra VE -- 1K
2013 Honda Pilot EX-L 4WD -- 50K
2002 Honda Accord EX-L -- 210K
2002 Infiniti I35 -- 130K

#4677779 - 02/25/18 02:57 PM Re: Super cleaning windshield [Re: mclasser]
danez_yoda Offline

Registered: 07/18/09
Posts: 389
Loc: texas
That might make the wiper chatter worse. You cant get even coverage by hand and most “polish” waxes have no abrasives in them only chemical cleaners if that. The wax it leaves behind may cause more wiper chatter than a dry windwhield.

If you are insistant on trying to polish your windshield i would use atleast a compound like meguiars ultimate compound. It finishes out nice and clear on headlights and a foam pad on a DA.

The harborfreight da is cheap and does a good job for this kind of work.

#4677780 - 02/25/18 02:57 PM Re: Super cleaning windshield [Re: mclasser]
jaj Offline

Registered: 08/21/03
Posts: 1046
Loc: Vancouver, Canada
I think the residual wax from the various chemicals will haze over pretty quickly and you'll end up with a blotchy mess.

I clean mine with plain water and a microfiber towel. Works every time. You could consider Bon Ami if it's available where you are. It cleans glass without leaving a residue.

Edited by jaj (02/25/18 02:58 PM)

#4677787 - 02/25/18 03:04 PM Re: Super cleaning windshield [Re: mclasser]
dparm Offline

Registered: 04/19/10
Posts: 13450
Loc: Chicago, IL
Clay bar alone should be sufficient. Cleaner wax is not a good idea on a windshield. You can also try one of the Nanoskin AutoScrub sponges which are supposedly even better than clay bar (they're similar to the Magic Eraser):

If you really have bad scratches or whatever, take it to a professional and they can use something like cerium oxide to polish the glass.
2017 Chevrolet Corvette Grand Sport

#4677835 - 02/25/18 03:58 PM Re: Super cleaning windshield [Re: mclasser]
FastEddie Offline

Registered: 06/15/08
Posts: 379
Loc: The 805, CA.
Only way to remove swirls and or wiper haze on the windshield is to polish it. And doing this by thanks.
08 DuraMax 4x4
auto detailing atascadero

#4677887 - 02/25/18 04:52 PM Re: Super cleaning windshield [Re: mclasser]
skyactiv Offline

Registered: 03/02/13
Posts: 4025
Loc: The Midwest
Visit a locally owned glass shop. They can can sometimes buff windshields and remove fine scratches.
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

#4677907 - 02/25/18 05:11 PM Re: Super cleaning windshield [Re: mclasser]
JC1 Offline

Registered: 11/29/08
Posts: 2697
Loc: Oshawa, Ontario Canada
Chris fix has a video with almost the same steps. Is does work goodm you'll also need to clean the inside of the windshield. He also uses a magic eraser to clean the inside of the windshield. It does work well.

Edited by JC1 (02/25/18 05:12 PM)
2015 Grand Caravan SXT Plus 5w-20 PPPP/Wix Filter
1997 Honda Civic CX 5w-30 PPPP/Mahle Filter

#4677927 - 02/25/18 05:34 PM Re: Super cleaning windshield [Re: mclasser]
honeeagle Offline

Registered: 12/16/12
Posts: 10
Loc: Canada
What I found works best and nothing has changed my mind is my moms system.
Using crumpled newspaper ,the kind that comes in your driveway for free, the cheapest paper and printing that smears on your fingers, the more colour the better.
wet windshield with pure ammonia dilute with water ( i refined this to de-ionized water) 30% ammonia the rest water.
Spray on and dry with the inky news/flyer paper ,wipe until it squeaks .
No soap because that is what streeks,the ink is a micro polish.
works or I'll refund your money whistle
Volvo 670 singled smart car 'on deck' towing newmar 5th

#4677978 - 02/25/18 06:29 PM Re: Super cleaning windshield [Re: mclasser]
JLawrence08648 Offline

Registered: 01/20/17
Posts: 127
Loc: NJ
Wondering how compound for clear coat would work? Or rottenstone?

YouTube shows using an extremely fine steel wool.

For cleaning discolored headlight lenses I use 2,000 and 3,000 grit wet sandpaper. That works great.

#4678054 - 02/25/18 07:22 PM Re: Super cleaning windshield [Re: mclasser]
MParr Offline

Registered: 10/28/17
Posts: 414
Loc: Georgia
Bar Keepers Friend May be just what you need for your windshield. They have several products that are safe to use on glass. The soft cleanser may be where to start.
2013 KIA Optima EX 2.4L. Now: Castrol Magnatec GTX 5W30 synthetic &OE filter
2017 Ford Escape SE 2.0T Now: PennPlt 5w30 syn FL-910s

#4678061 - 02/25/18 07:26 PM Re: Super cleaning windshield [Re: mclasser]
FastEddie Offline

Registered: 06/15/08
Posts: 379
Loc: The 805, CA.
The OP is dealing with swirl marks and light scratches, there is not one "cleaning" or "cleansing" product out there that is going to fix this.
08 DuraMax 4x4
auto detailing atascadero

#4678131 - 02/25/18 08:26 PM Re: Super cleaning windshield [Re: mclasser]
Rolla07 Offline

Registered: 11/05/11
Posts: 4555
2007 Corolla Red Pearl 151k miles
Castrol Magnatec 0w20 & Napa Proselect

#4680133 - 02/27/18 10:57 PM Re: Super cleaning windshield [Re: mclasser]
sleddriver Offline

Registered: 02/06/10
Posts: 4389
Loc: Central Texas
1998 Volvo V70 T5 226,808 mi. Original Owner.
M1 10W-30 HM