Previous in Forum: Need Little Wheels   Next in Forum: Unleaded Fuel in D4 Engine
Close
Close
Close
40 comments
Commentator

Join Date: Jun 2007
Location: Wake Forest, NC USA (in Central NC, God's country)
Posts: 64
Good Answers: 2

Removing Wiper Abrasions from Windshield Glass

01/10/2011 4:26 AM

I noticed in earlier threads here that there is limited information on glass scratch removal. Does anyone know of a practical and inexpensive way to remove wiper grit abrasions from automotive windshields? These fine streaks create annoying hazy vertical lines during the dark with oncoming lights. I am surprised by the lack of specific instructions which I have been able to find on the web. Also, it appears difficult to find abrasives such as cerium oxide, ferric oxide and the like locally in this area. There are a lot of products out there for paint restoration such as rubbing and polishing compounds, but there is no indication that they may be suitable for glass. Might any of these be worth a try? Thank you.

Allan

__________________
“Better to remain silent and be thought a fool than to speak out and remove all doubt. - Abraham Lincoln”
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20974
Good Answers: 781
#1

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 4:43 AM

Polish the scratches out with jewelers' rouge and a buffing wheel. This might take a while, if the scratches are deep.

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply
Guru
Hobbies - Fishing - New Member

Join Date: Jun 2008
Location: Raleigh, NC USA
Posts: 13529
Good Answers: 467
#2

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 7:44 AM

Have you tried something like Rain X? It might fill those scratches enough to improve visibility. Worth a try........easier than buffing.

__________________
Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. Ben Franklin
Register to Reply
Commentator

Join Date: Jun 2007
Location: Wake Forest, NC USA (in Central NC, God's country)
Posts: 64
Good Answers: 2
#4
In reply to #2

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 8:00 AM

Yes, I routinely use Rain-X on windshields and that doesn't seem to help in this case. Thanks for the suggestion though.

__________________
“Better to remain silent and be thought a fool than to speak out and remove all doubt. - Abraham Lincoln”
Register to Reply
Guru
Hobbies - Fishing - New Member

Join Date: Jun 2008
Location: Raleigh, NC USA
Posts: 13529
Good Answers: 467
#5
In reply to #4

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 8:17 AM

I see you're in Wake Forest..........from the sounds of things, your scratches might be filled with ice by tomorrow. I'm down in Garner.

If these scratches are fairly deep, I've had limited success playing around with clear fingernail polish, applied and then wiped with acetone while still wet. Maybe check the parts stores, there might be some products out that we haven't heard of.

The only reason I'm steering away from buffing, is because I can completely see myself trying that, and rendering my windshield way worse than when I started.

__________________
Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. Ben Franklin
Register to Reply
Guru
Hobbies - Fishing - Old Salt Hobbies - CNC - New Member United States - US - Statue of Liberty - New Member

Join Date: Mar 2007
Location: Rosedale, Maryland USA
Posts: 5198
Good Answers: 266
#3

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 7:53 AM

This company provides supplies for the fenestration and auto industries. You can find the abrasives and tools needed to remove scratches from glass. Generally we use a pad on a drill with an aluminum oxide abrasive to remove the scratches. The abrasive is very fine grit comes as dry power. You just mix it with water.

http://www.crlaurence.com/default.aspx

You need to take care in what you are doing. You could make it worst then it is with these products. One grain of sand on the pad can leave one heck of a swirl on the glass. The abrasive needs to be kept wet or can cause swirls in the glass.

Not knowing how bad the scratches are have you tried some of the glass scratch removal compounds from the local auto parts store?

__________________
Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
Register to Reply Score 1 for Good Answer
Commentator

Join Date: Jun 2007
Location: Wake Forest, NC USA (in Central NC, God's country)
Posts: 64
Good Answers: 2
#6
In reply to #3

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 8:19 AM

Good reference and advice! Thanks.

__________________
“Better to remain silent and be thought a fool than to speak out and remove all doubt. - Abraham Lincoln”
Register to Reply
Commentator

Join Date: Jun 2007
Location: Wake Forest, NC USA (in Central NC, God's country)
Posts: 64
Good Answers: 2
#7
In reply to #3

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 8:30 AM

Addendum to that last reply--the local auto parts stores here don't seem to have anything for glass, just paint products.

__________________
“Better to remain silent and be thought a fool than to speak out and remove all doubt. - Abraham Lincoln”
Register to Reply
Power-User
Engineering Fields - Petroleum Engineering - Rig Electrician United States - Member - the Oil Patch Engineering Fields - Power Engineering - Drives & Gen's Engineering Fields - Instrumentation Engineering - Drive Control Popular Science - Cosmology -

Join Date: Jan 2010
Location: Houston off/on-shore @ Oil Patch
Posts: 225
Good Answers: 2
#8
In reply to #3

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 9:44 AM

OK, GA, maybe if it works on the DIY level. hope to hear from someone who tries it. but how much is a new windshield? alwase $1 below the deductable but YMMV, i alwase find a new one is one of the biggest upgrade per $ you can do for driving enjoyment

__________________
Why do they make manhole covers round? so they won't fall in [before asking "Who is John Galt?"]
Register to Reply
Guru

Join Date: Oct 2010
Posts: 1294
Good Answers: 35
#9

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 9:50 AM

For anybody that has done this: do you ever get distortion due to uneven buffing / polishing?

How do you avoid that?

How annoying is that? Will state inspection stations reject windshields based on such distortion?

Register to Reply
Guru
Hobbies - Fishing - Old Salt Hobbies - CNC - New Member United States - US - Statue of Liberty - New Member

Join Date: Mar 2007
Location: Rosedale, Maryland USA
Posts: 5198
Good Answers: 266
#12
In reply to #9

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 1:16 PM

This process is to remove light scratches. If the scratches are that heavy that you would need to polish it down until you cause distortion in the glass. You would be better to replace the glass. As you will be polishing for quite a while. Its a very fine abrasive.

__________________
Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
Register to Reply
Guru

Join Date: Oct 2010
Posts: 1294
Good Answers: 35
#15
In reply to #12

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 7:46 PM

Thanks!

I guess "jeweler's rouge" and "buffer" (presumably powered) worried me. I'd still be cautious--try it on a scrap piece of glass first...

Register to Reply
Guru

Join Date: Oct 2008
Posts: 42294
Good Answers: 1662
#30
In reply to #15

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 6:29 PM

"-try it on a scrap piece of glass first..."

Or the neighbor's windshield, when he's not around.

Register to Reply
Guru

Join Date: Aug 2010
Posts: 688
Good Answers: 21
#10

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 10:55 AM

There was a company advertising on TV for awhile that claimed to be able to repair cracks and I believe scratches. But, I have not seen this on for a long time. I think their name was Safe Auto or something like that.

Over the years the only way I have ever repaired one of these is to but in new.

Register to Reply
Guru

Join Date: Dec 2010
Posts: 1894
Good Answers: 44
#11

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 11:21 AM

There is a liquid suspension polish called Glass Wax. I haven't seen it in a while, but it comes in a pink can (like an acetone or mineral spirits can). I've had the same can for years, still works great.

Register to Reply
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#13

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 3:53 PM

Does your insurance cover it? Or maybe it covers breakage...
Del

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Guru
Hobbies - DIY Welding - New Member

Join Date: Apr 2008
Location: Bristol, Tennessee
Posts: 1176
Good Answers: 57
#14

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 4:15 PM

We're downwind from a volcano here, get abrasive dust regularly. If you don't gently rinse the dust off your windshield, you get permanent scratches from your wipers. Folks in rental cars will just hit the washer/wiper and ruin the windshield in a few seconds.

__________________
mike k
Register to Reply
Associate

Join Date: Nov 2008
Posts: 52
Good Answers: 2
#16
In reply to #14

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 10:49 PM

I've got a similar problem, but its with my aquarium tank. I'm using bore well water and the water is rather hard and leaves a salt deposit at the water edges. Cleaning the tank, I find abrasions at the water level in the tank. Can anything be done about the abrasions?

Register to Reply
Participant

Join Date: Dec 2010
Posts: 4
#17

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 11:02 PM

I use turtle wax compound and a buffer on motorcycle windshields to remove scratches works well, no distortion in the relatively soft plastic but if I can get a finger nail to catch scratch I would not try to abrade it out-fill it. One idea call a couple of the windshield repair companies ask what they use on scratches. I always wax both sides of glass on my vehicles makes easy to clean without scratching and helps you from using that pesky window defogger inside your car too. Good luck, T

Register to Reply
2
Commentator

Join Date: Feb 2010
Posts: 87
Good Answers: 7
#18

Re: Removing Wiper Abrasions from Windshield Glass

01/10/2011 11:32 PM

Many states require zero deductable for windshields. If NC is like FL in that respect, then one sure fire way to return the windshield to brand-new condition would be vigorous mechanical agitation.... with something like a brick. :-)

Register to Reply Good Answer (Score 2)
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#20
In reply to #18

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 3:05 AM

Yeah, that's what I was hinting at in #13, an arrow is my preffered means of mechanical agitation.
Del

__________________
health warning: These posts may contain traces of nut.
Register to Reply Off Topic (Score 5)
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20974
Good Answers: 781
#21
In reply to #20

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 3:11 AM

I can see explaining that to the insurance guy--But sir, I swear, Robin Hood shot it with an arrow!

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply Off Topic (Score 5)
Anonymous Poster
#38
In reply to #18

Re: Removing Wiper Abrasions from Windshield Glass

01/15/2011 1:34 AM

... Sleazy and unethical though that may be. I have no interest in paying for this guy's windshield, which is what you propose. Insurance fraud costs us all more in higher premiums.

Register to Reply
Anonymous Poster
#39
In reply to #38

Re: Removing Wiper Abrasions from Windshield Glass

01/15/2011 4:26 AM

You seriously forget the safety point, it will cost "EVERYONE" a lot more if with his damaged screen he runs someone down because he never saw them!!!!

I once saw a program that reckoned every car accident where someone got killed, can eventually cost around $0.5 million, if EVERY single cost was added in.....not just the ones the insurance has to pay for....hospitals, mortuaries, ambulances, cost of holding up the traffic, burial, loss of wages, selling a property, wasted fuel, police's time etc etc etc....sadly I have forgotten the fine details it was sometime ago....but I am sure you get the gist....

Insurance companies are still in the insurance business, if it was so bad, they could pull out. I wonder why they don't?

Register to Reply
Anonymous Poster
#40
In reply to #39

Re: Removing Wiper Abrasions from Windshield Glass

01/15/2011 6:09 AM

This was recently posted on CR4, look at the first line of this blog!!

http://cr4.globalspec.com/blogentry/15449/Free-PDF-on-Cost-of-Occupational-Fatalities?frmtrk=CR4digest

First line:-

"From 1992–2001, there were 51,684 civilian workers who died from injuries sustained while working in the U.S., generating a total societal cost of just over $43 billion (Table 1)."

Get my point? over US$ 831,000 per death!!!!! And I bet many of these did not involve vehicles at all........thats what dying costs in this day and age!

The cost of a windscreen paid for by the insurance company is a small price to pay ANY way you look at it!!

Even if an accidental death only costed one hundreth of this at US$ 8,310 it would still be VERY cheap to get the insurance to pay for a screen!!!!

Register to Reply
Power-User
Australia - Member - New Member

Join Date: Jul 2008
Location: Newcastle NSW Australia
Posts: 237
Good Answers: 22
#19

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 12:49 AM

Just replace the screen. Less hassle, less chance of turning into afternoon sunlight, or oncoming headlights at dusk, only to find you've rendered the whole screen nearly opaque. Not a situation you want to find yourself in. :(

Register to Reply Score 1 for Good Answer
Anonymous Poster
#22

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 7:55 AM

Try using the metal cleaning product Never Dull. It cleans the grime off really well and may even polish out some of the scratches.

Register to Reply
Associate

Join Date: Jun 2010
Location: Plum (Pittsburgh), PA
Posts: 28
Good Answers: 2
#23

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 8:55 AM

Im sure it is cheaper elsewhere, but Mcmaster has cerium oxide:

http://www.mcmaster.com/#glass-polish/=ajko86

Cerium Oxide works well because it has the same IEP as glass and doesn'

t allow the small particles to redeposit on the freshly removed glass.

Register to Reply
Participant

Join Date: Jan 2011
Posts: 1
#25
In reply to #23

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 9:49 AM

Hello all!! I admire the DIY attitude but if it's that bad, check with your insurance. They should cover one free windshield replacement per year. You might have to take it somewhere but alot of times you can find a mobile authorized vendor that will come to you.

Register to Reply Score 1 for Good Answer
Guru

Join Date: Oct 2010
Posts: 1294
Good Answers: 35
#27
In reply to #23

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 10:07 AM

So, help me with IEP--the only google suggestion seems to be "Individualized Education Plan"?

Register to Reply
Power-User

Join Date: Sep 2006
Posts: 186
Good Answers: 22
#24

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 9:35 AM

I live in New Mexico where road driving results in the same effect one would get if he took his vehicle to a sand-blasting shop and had the windshield lightly blasted. The only difference is that the natural blasting takes a year or two to make the glass difficult to see through in the light of on-coming vehicles or the sun, In addition, the pitted surface eats up wiper blades quickly so they have to be replaced at least yearly.

I have chosen to have new windshields installed about every two years. At $160 each for my two Chevy trucks, I think it is better than trying to "make a silk purse out of a sow's ear"

Register to Reply Score 1 for Good Answer
Power-User

Join Date: Dec 2010
Posts: 323
Good Answers: 2
#26

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 9:52 AM

Cerium oxide can be bought from manchester minerals, just google the same and find what you want, they will accept pay-pal and post to anywhere on the planet!

You will also need an old felt hat or jewellers buff, mix the cerium oxide with a bit of water,enough to make a sloppy paste and rub it over the scratches for about ten minutes.

Xanasax

Register to Reply
Associate

Join Date: Jan 2009
Posts: 30
#28

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 11:26 AM

An old friend of mine, retired bodyman, polished out some pretty nasty scratches and wiper scratches with a body polishing buffer using a new buffer pad and chrome polish. Did a fantastic job.

Register to Reply
Anonymous Poster
#29

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 4:44 PM

Try Bon Ami cleansing powder. The finer grain one you want is good for cleaning mineral scum from glass and reportedly removes fine scratches.

Good Luck

BBRT

Register to Reply
Guru
Engineering Fields - Nuclear Engineering - New Member

Join Date: Sep 2009
Location: Louisville, OH
Posts: 1537
Good Answers: 29
#31

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 11:07 PM

I've seen kits for polishing glass advertised in antique auto literature. Never used it though.

__________________
Lehman57
Register to Reply
Guru
Hobbies - RC Aircraft - New Member Hobbies - Automotive Performance - New Member Hobbies - DIY Welding - New Member

Join Date: Jul 2007
Location: Fort Lauderdale Florida
Posts: 5708
Good Answers: 123
#32

Re: Removing Wiper Abrasions from Windshield Glass

01/11/2011 11:50 PM

NAPA sells a product from Dura Gloss called New Glass-755. It can be used by hand, or with a powered buffer that one would use on painted surfaces. Just make sure to go slow and keep moving. It will heat up very fast, and might crack if you work rust one spot.

Bon-Ami cleanser is made from egg shells I am told, and will not harm glass like most cleansers will.

__________________
Bob
Register to Reply
Guru

Join Date: Oct 2006
Location: 44.56024"N 15.307971E
Posts: 6589
Good Answers: 251
#33

Re: Removing Wiper Abrasions from Windshield Glass

01/12/2011 1:57 PM

Try this:

Use a soft felt or foam pad on a drill or buffer, and apply a small amount of toothpaste to the foam.Use this to buff out the scratches.Wipe frequently and check results.When finished, wipe with a damp rag.This method works very well on dull headlights, as well.

It also works well on scratches on CD and DVDs, but use manual buffing instead, with a cotton ball or soft cloth.Rinse and see the difference.

You can buy a commercial product, but toothpaste works just as well.Use the cheapest toothpaste you can find.

Something I have discovered about rainex is it leaves a film that must be removed periodically, because it turns milky when going into the sun in the morning,when the windshield is cold.The heat from the defrost will clear it up,but the best way is to use a citrus cleaner with NO ABRASIVE to remove it.Citrus hand cleaner works well, but you have to search diligently to find it without pumice.

__________________
"A man never stands so tall as when he stoops to help a child." "Never argue with a stupid person.They will drag you down to their level and beat you with experience"
Register to Reply
Guru
Hobbies - DIY Welding - Wannabeabettawelda

Join Date: May 2007
Location: Annapolis, Maryland
Posts: 7222
Good Answers: 416
#34
In reply to #33

Re: Removing Wiper Abrasions from Windshield Glass

01/12/2011 6:48 PM

Just thought you'd like to know that the abrasive used in most toothpastes is pumice. (However a much finer grade than found in hand cleaners.)

Cheers !!

Register to Reply
Anonymous Poster
#35
In reply to #34

Re: Removing Wiper Abrasions from Windshield Glass

01/12/2011 6:57 PM

Some also use sodium bicarbonate (baking soda),which is very gentle, and only effective in a paste state.Too much liquid and it dissolves.Baking soda alone is also very effective if properly mixed with water and a little alcohol to speed drying.

Register to Reply
Guru
Hobbies - RC Aircraft - New Member Hobbies - Automotive Performance - New Member Hobbies - DIY Welding - New Member

Join Date: Jul 2007
Location: Fort Lauderdale Florida
Posts: 5708
Good Answers: 123
#36
In reply to #33

Re: Removing Wiper Abrasions from Windshield Glass

01/13/2011 8:50 AM

As an added bonus, it may help prevent decay.

__________________
Bob
Register to Reply
Guru
Popular Science - Weaponology - New Member Engineering Fields - Engineering Physics - New Member Engineering Fields - Nuclear Engineering - New Member

Join Date: Dec 2007
Location: No. VA, USA (No, it does NOTu mean "won't go"!)
Posts: 1791
Good Answers: 75
#37
In reply to #36

Re: Removing Wiper Abrasions from Windshield Glass

01/13/2011 8:53 AM

Glass decay? I wondered what those pits were. But my wife always says I'm suffering class decay. I guess she doesn't like my pits, either.

__________________
Been away a while. Miss all my old friends. Some of you I KNOW are still around. Where are the rest?
Register to Reply Off Topic (Score 5)
Register to Reply 40 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Copy to Clipboard

Users who posted comments:

anicholas (3); Anonymous Poster (6); bob c (2); Brave Sir Robin (1); cuba_pete (1); Del the cat (2); doitinastang (1); Doogleass (1); Echa (1); fixitorelse (1); Flee to Me reMote elF (1); HiTekRedNek (1); kramarat (2); kwcharlie (1); Lehman57 (1); lyn (1); micahd02 (1); mike k (1); OldTechNewToys (1); ozzb (2); rhkramer (3); Samuel Chelliah (1); tmills (1); Tornado (2); tundra242 (1); xanasax (1)

Previous in Forum: Need Little Wheels   Next in Forum: Unleaded Fuel in D4 Engine

Advertisement