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Old September 1st, 2012, 01:18 PM   #1 (permalink)
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Default Got scratches. This is definitely NOT Gorilla Glass.

I decided to run without a protector and it cost me. I've got a line of small scratches parallel to each other along the line you where you would use your finger to scroll down the screen.

I don't know if I had some sand on my finger one day or what. They aren't deep enough to feel, and if you clean the glass with microfiber they disappear from view. But once the screen gets the slightest bit of fingerprints and oil on it, they show up again.

I'm debating whether to try to polish it out before I put a protector on. Does anyone know if our screen has any kind of anti-fingerprint coating I might mess up if I do?

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Old September 1st, 2012, 02:32 PM   #2 (permalink)
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So because you scratched it it isn't Gorilla Glass? Really? .


Have you tried dampening the microfiber with a tiny bit of warm water and cleaning that area? Maybe it's a residue of some kind?
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Old September 1st, 2012, 02:43 PM   #3 (permalink)
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Yeah, gorilla glass is not scratch proof unfortunately. I allow my kids to use mine, so screen protector is a must for me. Sorry to hear about that.
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Old September 1st, 2012, 04:56 PM   #4 (permalink)
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The screen protector will most likely mask any scratches you have. Here is a picture of mine after dropping it. The shattered area at the lower right corner is obvious. What you don't see is all the spider cracks running up the entire length of the screen. They're only faintly visible when the unit is off and the screen is completely black. The screen protector is a matte finish anti-glare. I put one on my new N7 before I even turned it on for the first time.

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Old September 1st, 2012, 05:02 PM   #5 (permalink)
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Quote:
Originally Posted by stridermt2k View Post
So because you scratched it it isn't Gorilla Glass? Really? .


Have you tried dampening the microfiber with a tiny bit of warm water and cleaning that area? Maybe it's a residue of some kind?
My cell phone has gorilla glass and that thing is practically scratch proof. Absolutely no need for a protector. If it is in fact gorilla glass it is not going to get scratch by everyday items like keys and such. It sure as hell not going to get scratched by sand in your fingers. Unfortunately the Nexus 7 is not gorilla glass. I bought the Sopcast cover from Amazon that closes and protects the screen when it is not in use. I like it so far, no need for a screen protector.
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Old September 1st, 2012, 05:04 PM   #6 (permalink)
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Gorilla glass doesn't mean it won't scratch... and not being gorilla glass doesn't mean that's why it did.
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Old September 1st, 2012, 05:10 PM   #7 (permalink)
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Quote:
Originally Posted by dportal2006 View Post
My cell phone has gorilla glass and that thing is practically scratch proof. Absolutely no need for a protector. If it is in fact gorilla glass it is not going to get scratch by everyday items like keys and such. It sure as hell not going to get scratched by sand in your fingers. Unfortunately the Nexus 7 is not gorilla glass. I bought the Sopcast cover from Amazon that closes and protects the screen when it is not in use. I like it so far, no need for a screen protector.
Quartz sand is much harder than Gorilla Glass.

Sand, one of the active ingredients in sandpaper, will easily scratch Gorilla Glass, it's been shown repeatedly.

OP, sorry for your woes, hope some of the advice here helps.
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Old September 1st, 2012, 06:47 PM   #8 (permalink)
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Yeah I caught the charging cable one night and of course flipped my N7 face down on the wood floor... normally not a problem but around here hey spread sand around like it was cheap water on a dry lawn and it gets up stairs on my office floor all the time, so now I have a little scratch right around the Enter key. Not as bad it sliding out of the case and landing on both bottom corners on a concrete floor a couple of weeks go!
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Old September 1st, 2012, 08:37 PM   #9 (permalink)
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A very small dab of a good glass top stove cleaner may help to polish the scratch out.
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Old September 1st, 2012, 11:20 PM   #10 (permalink)
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You do NOT want to use anything abrasive on the screen ... its a special coating that repells oil.
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Old September 1st, 2012, 11:44 PM   #11 (permalink)
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I had a Samsung Galaxy with gorilla glass and it was scratched a lot.
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Old September 2nd, 2012, 06:32 AM   #12 (permalink)
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I pulled the gorilla glass off my old phone, I'll make a video if you guys want, but it will NOT scratch. Screwdrivers, knives, I tried it all and it wouldn't scratch.

Even bent the tip on one of my knifes.
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Old September 2nd, 2012, 08:08 AM   #13 (permalink)
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Thanks guys. Didn't mean to start a Gorilla Glass debate. Since the scratches aren't visible when clean, I will get a protector and see if they stay hidden underneath it. Off to the protector threads.
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Old September 2nd, 2012, 10:33 AM   #14 (permalink)
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OP, best luck with that, I will bet that the screen protector will do the trick.

Quote:
Originally Posted by sleezecheeze View Post
I pulled the gorilla glass off my old phone, I'll make a video if you guys want, but it will NOT scratch. Screwdrivers, knives, I tried it all and it wouldn't scratch.

Even bent the tip on one of my knifes.
Thanks, the internet has lots of vids of metal not scratching GG.


None that I have seen for it standing up to a hard sand, as specified in the first post.

http://en.wikipedia.org/wiki/Hardness_scale


People that live with and near hard sand know that GG scratches.

If you have friends in that situation, recommend a good screen protector.
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Old September 2nd, 2012, 01:25 PM   #15 (permalink)
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i thought this was Corning Glass, same thing just not as resistant.
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Old September 2nd, 2012, 01:52 PM   #16 (permalink)
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Quote:
Originally Posted by blink182 View Post
i thought this was Corning Glass, same thing just not as resistant.
Corning is the maker of Gorilla Glass, haven't heard of them making an almost GG, but not sure.

Others make the same or similar formulation.
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Old September 2nd, 2012, 02:06 PM   #17 (permalink)
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Quote:
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Corning is the maker of Gorilla Glass, haven't heard of them making an almost GG, but not sure.

Others make the same or similar formulation.
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Old September 4th, 2012, 09:48 AM   #18 (permalink)
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Everybody, repeat after me.

Gorrilla Glass will scratch.

I just want to smack people upside the head when I hear them telling people not to use screen protectors because GG won't scratch. IT WILL. My OG Droid had it and definitely scratched. GG has improved scratch resistance from other materials as well as shatter resistance, but it is not a super material and not impervious to damage.
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Old September 4th, 2012, 10:53 AM   #19 (permalink)
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My old Ally never got a scratch (at least on the screen) , maybe this is the new improved version? Actually the Kindle Fire doesn't seem as susceptible to scratching as the Nexus 7 either.
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Old September 4th, 2012, 11:24 AM   #20 (permalink)
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Quote:
Originally Posted by dportal2006 View Post
My cell phone has gorilla glass and that thing is practically scratch proof. Absolutely no need for a protector. If it is in fact gorilla glass it is not going to get scratch by everyday items like keys and such. It sure as hell not going to get scratched by sand in your fingers. Unfortunately the Nexus 7 is not gorilla glass. I bought the Sopcast cover from Amazon that closes and protects the screen when it is not in use. I like it so far, no need for a screen protector.
My wife's e4gt has gorilla glass and it's all scratched up. She's not particularly hard on her devices either. Treated glass is more scratch and impact resistant than non treated. It's not scratch proof!
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Old September 6th, 2012, 09:26 AM   #21 (permalink)
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GG will scratch, but not under normal every day use as intended. I have numerous devices with GG and no screen protectors, I actually cant stand em lol. And for the most part none of my devices have scratches on em. My DX, no case, to screen protector, carried in my pocket(s), cat walked all over, dropped, tossed across the room, and not one scratch on it, the screen anyhow, I did manager to scratch the battery cover in a carpet mill. lol
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Old September 6th, 2012, 09:32 AM   #22 (permalink)
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I see someone recommended a little glass stove top cleaner to help improve scratches - anyone try this? My 10 month old, learning to pull herself up, managed to knock my N7 around and get a nice scratch on the front and I'd like to correct it as best as possible.
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Old September 6th, 2012, 05:30 PM   #23 (permalink)
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Quote:
Originally Posted by The_Gnome_ View Post
I see someone recommended a little glass stove top cleaner to help improve scratches - anyone try this? My 10 month old, learning to pull herself up, managed to knock my N7 around and get a nice scratch on the front and I'd like to correct it as best as possible.
Ok here is the deal anything that has an abrasive should not be used on your screen. So NO.

Scratch is a scratch if you use the oven cleaner it will put scratches all over it. There is pretty much nothing you can do than leave scratch alone.

Sand is everywhere in this world and it is very hard and will scratch stuff so just take it easy and be glad your gadget still works.
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Old September 6th, 2012, 08:27 PM   #24 (permalink)
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Quote:
Originally Posted by dportal2006 View Post
If it is in fact gorilla glass it is not going to get scratch by everyday items like keys and such.
I dont know where you heard such a thing but it is not true. GG is thinner and harder than typical glass; but it is Not scratch proof (or shatter proof).
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Old September 6th, 2012, 10:32 PM   #25 (permalink)
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Quote:
Originally Posted by cwrig View Post
I dont know where you heard such a thing but it is not true. GG is thinner and harder than typical glass; but it is Not scratch proof (or shatter proof).
true but the items he listed shouldnt scratch it in normal use.

now if you go pitching your keys @ your Nexus 7 @ 90mph, then yea most likely going to cause some damage lol.

I know dropping the N7 on its corner from 4' will shatter the piss out of it tho.
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Old September 7th, 2012, 04:15 AM   #26 (permalink)
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Quote:
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I know dropping the N7 on its corner from 4' will shatter the piss out of it tho.
I dropped mine from 18". Shattered the piss out of it. I'm holding on MUCH tighter to the new one.

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Old September 7th, 2012, 06:50 AM   #27 (permalink)
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the breakthrough in the glass is not the hardness of it but the special bonding of the coating on the surface that resist the oil from fingerprints making it work well for a touch screen. As far is taking out a scratch on the surface you might try a wax or polish with an oil in it that will fill in the scratch optically making it clear.
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Old September 7th, 2012, 07:20 AM   #28 (permalink)
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My Commando with shattered glass, let me show you it.
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Old September 7th, 2012, 03:03 PM   #29 (permalink)
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I would rather look at a small scratch than an ugly screen protector. What's the point of saving the glass from scratches? In 2 years these devices will be obsolete and will be buying updates ones.
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Old September 7th, 2012, 04:19 PM   #30 (permalink)
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Quote:
Originally Posted by excommie View Post
I would rather look at a small scratch than an ugly screen protector. What's the point of saving the glass from scratches? In 2 years these devices will be obsolete and will be buying updates ones.
Agree with this - but also I bought a 5 dollar case for my nexus 7 and I have virtually no scratches. So I think as long as you make some decent attempt to protect it you will only end up with the smaller scratches instead of the ones that basically warrant buying a replacement.

I am still pretty upset about the lifting glass issues and think I want a samsung galaxy note 10.1...
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Old September 7th, 2012, 04:21 PM   #31 (permalink)
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For those that need to understand what Gorilla Glass is I suggest you watch this little video - I find the explanation very good and also some of the tests are nice to look at!!! Enjoy and thank the XDA devs!


Truth About Gorilla Glass - Drops, Tests, Composition - YouTube
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Old October 11th, 2012, 05:06 AM   #32 (permalink)
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Quote:
Originally Posted by JanComputerman View Post
the breakthrough in the glass is not the hardness of it but the special bonding of the coating on the surface that resist the oil from fingerprints making it work well for a touch screen. As far is taking out a scratch on the surface you might try a wax or polish with an oil in it that will fill in the scratch optically making it clear.
GG the chemical properties of the first few microns of glass are changed during is manufacture, while the glass is still wet/hot.
wikipeadia quote
"The material's primary properties are its strength (allowing thin glass without fragility), its high scratch resistance (for protective coating), and its hardness (with a Vickers hardness test rating of 622 to 701).[2] According to its manufacturer, the material can be recycled.[3]"

"During its manufacture, Gorilla Glass is toughened by ion exchange. The material is submersed in molten potassium salt at a temperature of approximately 400 °C (750 °F), whereby smaller sodium ions leave the glass to be replaced by larger potassium ions from the salt bath. The larger ions occupy more room and are pressed together when the glass cools, causing potassium ions to diffuse far into the surface, thereby creating a 'surface' layer of high compressive stress deep into the glass – a layer more resistant to damage from everyday use."
end quote
Please note the words 'more resistant' 'high scratch resistance' not scratch proof or smash proof.
And there is no mention that the Nexus 7 has Corning GG.
Another quote
"Google’s own specs page lists the device as having “Corning Glass”. When Corning unveiled Gorilla Glass 2 at CES in January, they mentioned that there were a number of their customers that for some reason were not interested in walking around as an advertisement for Corning’s brand. Surely the device has something like Gorilla glass on it, but it’s anyone’s guess as to which version of tough glass is covering the screen."

Hope this helps to clean up some of the issues, read the spec's and understand the marketing.
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Old November 16th, 2012, 02:06 PM   #33 (permalink)
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Quote:
Originally Posted by fartblossom View Post
I decided to run without a protector and it cost me. I've got a line of small scratches parallel to each other along the line you where you would use your finger to scroll down the screen.

I don't know if I had some sand on my finger one day or what. They aren't deep enough to feel, and if you clean the glass with microfiber they disappear from view. But once the screen gets the slightest bit of fingerprints and oil on it, they show up again.

I'm debating whether to try to polish it out before I put a protector on. Does anyone know if our screen has any kind of anti-fingerprint coating I might mess up if I do?
last i checked, the Nexus 7 is made with "scratch resistant Corning Glass," but not Corning's actual Gorilla Glass...there is a difference. the glass on the N7 is cheaper (hence the low price tag of the tablet). also, i have no scratches on mine.
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Old November 18th, 2012, 11:09 PM   #34 (permalink)
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Nexus 7 - Asus Specification

ASUS TruVivid technology with Corning® Fit Glass for improved color clarity and scratch resistance.

Nexus 7 - Wikipedia

The tablet's thin, lightweight form factor was achieved without sacrificing computer power through a special LCD display design called Asus TruVivid.

The LCD panel uses a "one-glass" solution and a non-traditional lamination technique. Tablet touchscreens typically comprise four pieces of glass—two that sandwich the liquid crystal, a touch sensor glass, and a protective glass—whereas the Asus TruVivid design fuses the protective and sensor glass, with the sensor attached as a film.[16]

The conventional lamination technique for touchscreens involves air bonding, in which the glass layers are glued around the edges, leaving air in between; Asus used a "full lamination" technique, in which the glass layers are fused by adhesive with no air between. This yielded thinner display panels, but made production more difficult, as there was less tolerance for imprecision without affecting the quality of the screen.[16]

The tablet's display is protected by a layer of Corning Fit Glass.[2]

BTW, I buy screen protectors for all my devices (where applicable).
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Old November 19th, 2012, 09:33 AM   #35 (permalink)
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I had a Samsung Galaxy with gorilla glass and it was scratched a lot.
Yep mine has a few on them. I had a protector on mine and noticed it dulled the screen. I took that off and within a week I had a scratch. I want to know what in my empty pocket could do this. Must be the lint!
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Old November 19th, 2012, 11:25 AM   #36 (permalink)
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last i checked, the Nexus 7 is made with "scratch resistant Corning Glass," but not Corning's actual Gorilla Glass...there is a difference. the glass on the N7 is cheaper (hence the low price tag of the tablet). also, i have no scratches on mine.
The only scratch resistant glass that Corning currently manufactures is the Gorilla glass products.
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Old November 19th, 2012, 11:26 AM   #37 (permalink)
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Yep mine has a few on them. I had a protector on mine and noticed it dulled the screen. I took that off and within a week I had a scratch. I want to know what in my empty pocket could do this. Must be the lint!
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Old November 19th, 2012, 11:43 AM   #38 (permalink)
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I have never had a scratch on any phone I have ever owned, no screen protectors
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Old November 19th, 2012, 04:26 PM   #39 (permalink)
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The only scratch resistant glass that Corning currently manufactures is the Gorilla glass products.
the Nexus 7, from Asus's website:

ASUS TruVivid technology with Corning® Fit Glass for improved color clarity and scratch resistance.

so is Asus lying?
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Old November 20th, 2012, 04:46 AM   #40 (permalink)
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the Nexus 7, from Asus's website:

ASUS TruVivid technology with Corning® Fit Glass for improved color clarity and scratch resistance.

so is Asus lying?
"Resistance" and "immunity" are not synonymous.
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Old November 20th, 2012, 07:17 AM   #41 (permalink)
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"Resistance" and "immunity" are not synonymous.
i never said it was a scratch immune piece of glass. i don't think anyone did. i did however say that it was scratch resistant, per both Asus and Corning, and that it wasn't the famed Gorilla Glass (which presumably provides even more scratch resistance).

please don't put words in my mouth - thanks.
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Old November 20th, 2012, 07:42 AM   #42 (permalink)
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i never said it was a scratch immune piece of glass. i don't think anyone did. i did however say that it was scratch resistant, per both Asus and Corning, and that it wasn't the famed Gorilla Glass (which presumably provides even more scratch resistance).

please don't put words in my mouth - thanks.
I don't think it was anything more than misunderstanding.

You underlined scratch resistant and asked if they were lying.

Do you think they're lying about being scratch resistant?
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Old November 21st, 2012, 02:23 PM   #43 (permalink)
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Realized I never reported back. After cleaning and adding protector, scratches are invisible and have stayed so.

I'm wondering now if maybe what I scratched was actually the anti-reflective coating and not the glass.
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Old November 21st, 2012, 02:56 PM   #44 (permalink)
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Its been my understanding that the coating provides the protection from scratches for the most part...
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