Is this possible? [can paper scratch screen?]

Macdude2010

macrumors 65816
Original poster
Mar 17, 2010
1,136
170
The Apple Store
Hello all,
I am curious about something. My question is, could the corner of a piece of paper scratch the display of a retina MacBook Pro in any way. I'm talking about the edge of the paper in the corner where two sides meet. Even if it's a micro scratch I would still like to know if it is possible.
 

utcoug

macrumors member
Mar 31, 2010
53
0
I find it funny how things I wouldn't expect to scratch screens do; it's frustrating really. As soon as it happens though, I can just enjoy my hardware and not worry so much about the little things. It's kind of like that first scuff on a new pair of shoes. :D
 

leman

macrumors G3
Oct 14, 2008
9,972
4,552
I know first-hand that paper edges can be rather sharp - but will it be enough to scratch glass? No idea. Do an experiment ;)
 

Dovahkiing

macrumors regular
Nov 1, 2013
200
77
If I remember my Mohs Hardness Scale from middle school science, it shouldn't be possible for a softer material to scratch a harder one. My bet would be on no. This scratch must have come from somewhere else. The retina screens are glass, right?
 

Macdude2010

macrumors 65816
Original poster
Mar 17, 2010
1,136
170
The Apple Store
I wouldn't think paper could actually scratch glass, but perhaps any coatings that are on the screen.
I find it funny how things I wouldn't expect to scratch screens do; it's frustrating really. As soon as it happens though, I can just enjoy my hardware and not worry so much about the little things. It's kind of like that first scuff on a new pair of shoes. :D
I know first-hand that paper edges can be rather sharp - but will it be enough to scratch glass? No idea. Do an experiment ;)
Can anyone test this for me with a piece of paper, I need the iPhone flashlight to see it, could someone try it, I'm extremely OCD and scared to.
 

maflynn

Moderator
Staff member
May 3, 2009
63,851
30,368
Boston
Can anyone test this for me with a piece of paper, I need the iPhone flashlight to see it, could someone try it, I'm extremely OCD and scared to.
Perhaps you should try yourself, instead of asking someone to scratch their laptop.

Edit:
I thought the rMBP display was plastic as they removed the glass for space,
 

snaky69

macrumors 603
Mar 14, 2008
5,903
480
No, it already happened, and I found a small scratch under direct light, but I was wondering if this could have caused this, or it was something else.
No.

To actually scratch something, anything, the material scratching the other must have a higher hardness. Paper is not harder than glass.
 

utcoug

macrumors member
Mar 31, 2010
53
0
Perhaps you should try yourself, instead of asking someone to scratch their laptop.

Edit:
I thought the rMBP display was plastic as they removed the glass for space,
I agree. I was like, "what@!". Scratch your own device. Geez.:mad:
 

Macdude2010

macrumors 65816
Original poster
Mar 17, 2010
1,136
170
The Apple Store
Perhaps you should try yourself, instead of asking someone to scratch their laptop.

Edit:
I thought the rMBP display was plastic as they removed the glass for space,
I agree. I was like, "what@!". Scratch your own device. Geez.:mad:
I would if I wasn't so OCD, I'm on 20mg of lexapro and I still can't test it myself, someone used a pin once to test something, someone might do it, I'm not forcing anyone.
 

sammich

macrumors 601
Sep 26, 2006
4,281
212
Sarcasmville.
I'm fairly certain that the screen cover on Macbooks is glass. (You need to keep in mind that thin glass tends to have a similar 'tapped' sound to plastic as opposed to thicker glass. A good example of this is high quality wine glasses. Tapping them produces a duller feel because it's less rigid and therefore a lower frequency sound)

With that said, it shouldn't be possible to mark glass with paper. Assuming that the paper in question is the usual cellulose/plant based stuff. Paper simply doesn't have the hardness to achieve it. In fact, you could probably take something a bit harder like a plastic pen cap and it still wouldn't leave a scratch.

I can't confirm if there is a coating on the glossy MacBook screen. A casual search says no'. So however your mark came to be or if it's even a permanent mark, I'm fairly confident it wasn't paper.
 

Macdude2010

macrumors 65816
Original poster
Mar 17, 2010
1,136
170
The Apple Store
Definitely it was something else. Please list all the materials in your house of whatever hardness so that we can test them 1-by-1 :rolleyes:
I've only had this computer for 2 days, and that's all it's really come in contact with, I assume it came from the factory that way?
 

Lucille Carter

Suspended
Jul 3, 2013
1,266
4
Tell me about it, 2012 was bad because of the forums, but now I'm just asking a question to help me get back to doing other more important things. :)
I understand and I know you are trying to make sure everything is perfect. But try taking a deep breath and relaxing. If you had to use a flashlight to see this small scratch you might just be able to live with it. If all else is working perfectly, why take a chance the replacement is bad.

I got a new MBPro retina to be delivered on Monday and a MB Air coming a few days after and have found Apple hardware to be well above the other junk on the market. I special ordered a new W540 from the factory and it would not even boot up!

Compared to this you are doing good! Enjoy!
 
Last edited: