Facts & Misconception about Gorilla & Dragontrail Glass

  1. Gudds
    Ice Cream Sandwich Jan 5, 2015

    Gudds , Jan 5, 2015 :
    Hello Everyone,

    I noticed many threads where members complain that their Gorilla glass got scratched and broke when it fell, so i decided to make a post about the issue and let people know what is Gorilla, Dragontrail, Tempered Glass & Sapphire glass and what to except and general misconceptions that people have about these glasses

    Lets First get to know what is Gorilla Glass, Sapphire glass, Tempered Glass & Dragontrail glass

    Gorilla Glass :
    Gorilla glass is registered trademark of Corning Glass Company of USA, it’s a alkali-aluminosilicate sheet toughened glass, it’s a special type of glass which has following properties, its hard, thin, lightweight & scratch resistant, after steve jobs used gorilla glass on Iphone, gorilla glass became the choice of all high end device makers and used in laptops, mobiles, tablets and other portable devices
    Gorilla glass have different versions, like Gorilla glass 2 & newer and better Gorilla glass 4, which is more shatter resistant the previous generation glasses
    Also please note that its not the glass which is scratch resistant but it’s the “secret” coating these manufacturer make which gives the hardness along with the chemical process of making glass bonds stronger

    Dragontrail is also a alkali aluminosilicate glass which is made by Asahi Glass company of Japan, Dragontrail is considered to be more resistant than gorilla glass 2 and suppose to resist scratch better, it can also support more weight upto 60kg. although in drop tests it does not compare well against the Gorilla glass. it can break more easily than GG3

    Sapphire Glass:
    Sapphire is not glass at all but it’s a crystalline material, sapphire glass is made of synthetic sapphire which are made in labs. Synthetic sapphire is generally made by applying incredibly high heat and pressure to aluminum oxide powder and getting blocks of synthetic spphire, these blocks are then cut and polished in screen sizes and this is what is called a sapphire glass
    Sapphire is very hard and compared to gorilla or dragontrail glass but sapphire transmits 6% less light. Also its heavier than gorilla glass of same thickness.

    Sapphire glass is nothing new, infact high quality watches have been using sapphire glass from a long time but the watch glass are usually 2 to 3 times thicker than the glass used on mobile devices. But all this has now changed, as companies have found to produce sapphire glass as screens. But sapphire are prone to shatters, they can shatter easily compared to Gorilla Glass or Dragontrail glass.

    Tempered Glass:
    Tempered glass screen protectors are essentially toughened glass, they are heat treated and chemically treated to make it stronger, it essentially is same as a GG or Dragontrail glass but made to protect devices. it contains different layers like silicon, PVC sheet between glass layers to give it impact resistance. tempered glass are essentially meant to give you the same glass feel of your device screen but to protect against minor scratches, drops. thing to note here is that many tempered glass vendors claim it to have hardness of 9, but those claims are mostly false. they same similar hardness as your normal GG

    Hardness levels:
    Now to understand what makes these glass resistant to scratches and so hard, we have to understand something called “Mohs scale of mineral hardness” in layman terms, this scale means, anything that has hardness less than the material will not scratch it. For example, quartz has hardness of 7 on Mohs scale, so a material likes copper will not be able to scratch quartz
    Coppers Mohs scale of hardness is 3, while quartz is 7
    (Please note that Corning values on their official website on the Vickers hardness scale, which is alternative to the Mohs scale)

    Corning gorilla glass has a Mohs hardness of 6 for Gorilla glass 2 and its suppose to be 6.7 for newer Gorilla glass 3. Dragontrail glass has hardness of around 6.5 on mohs scale while sapphire glass has hardness of 8 ~ 9

    Now that we know the basics, lets clear few things
    Gorilla glass, Dragontrail glass, even your Tempered glass and sapphire glass will all scratch, sapphire will be the hardest to scratch but will scratch none the less, so once you put them or have them dont expect your device to be impervious to damage. treated glass may resist scratches better but tend to shatter

    What will damage your screen most is “Sand” sand contains quartz, which has more hardness than both Dragontrail and Gorilla glass, also anything like diamond, steel files, abrasion papers with high hardness, granite and many other materials will scratch your screen.
    So if you live in sandy area or have sand or dust flying around as it is the case in our dusty country, use a screen guard of good quality to protect your screen. As sand has quartz in it and it will damage your screen.

    Gorilla glass. tempered glass & dragontrail glass will break too, given the right circumstances, they are hard but the hardness also makes them brittle, and can break easily. but any expert will tell you the screen or glass breaking depends on the type of landing when your device falls. some devices can fall from 6ft high and still survive but some will fall just from 2ft and can have shattered glass. even corning and Asahi Corp. dont claim their glass to be break resistant or scratch resistant.

    Never put pressure on screen when removing dust or sand, blow it away first and then use a soft cloth to clean your device by sweeping away the dust, rather than wiping it at first. if you are clumsy then use a tempered glass protector and good bumper case, they provide added protection and good bumber cases have been proven to protect your device.

    remember, OPO might cost you 300$ (16 GB) but screen replacement unit costs like 130$+ labour & tax which can be more than 50% of the device cost. so spening a bit of money you saved by buying OPO can always go in good accessories to make your device more secure


  2. ileptonindia
    Ice Cream Sandwich Jan 5, 2015

  3. zeus.
    Lollipop Jan 5, 2015

    zeus. , Jan 5, 2015 :
    good info for all ..keep it up!!

  4. Harish19
    Ice Cream Sandwich Jan 5, 2015

  5. gjegadeesh
    Ice Cream Sandwich Jan 5, 2015

  6. vinojohn
    Honeycomb Jan 5, 2015

    bnzjon likes this.
  7. Hemantk
    Honeycomb Jan 5, 2015

  8. sa6an
    Honeycomb Jan 5, 2015

  9. Ritz26
    Gingerbread Jan 5, 2015

    Ritz26 , Jan 5, 2015 :
    Very good information

  10. Sreeranjan
    Donut Jan 5, 2015

  11. rationaldevil
    Honeycomb Jan 5, 2015

  12. ashwani13
    Froyo Jan 5, 2015

  13. bp12
    Gingerbread Jan 5, 2015

  14. kidrow
    Ice Cream Sandwich Jan 5, 2015

    kidrow , Jan 5, 2015 :
    @Gudds Very nice info. & for those with short attention spans, my TL;DR version = Gorilla/tempered glass is scratch resistant, not scratch proof; shatter resistant, not shatter proof.

    & for people who like watching videos -

    Last edited: Jan 5, 2015

    rationaldevil, ileptonindia and Gudds like this.
  15. Nurve
    KitKat Jan 5, 2015

    Last edited: Jan 5, 2015

    finaldentiny and ileptonindia like this.
  16. kidrow
    Ice Cream Sandwich Jan 5, 2015

    kidrow , Jan 5, 2015 :
    @Nurve I respectfully disagree that this should be moved.

    The off topic section in the India forums does not get much love/attention. So an important post such as this will be missed by many.

    Also, unlike most Indian members, members on the global forums are more aware of things such as this because they have had 6 more additional months to have discussions on the OPO.

    If at all this has to be moved, let's have it done later once more OPOs are out in India. Just my 2 cents. Cheers.

    Nurve likes this.
  17. Nurve
    KitKat Jan 5, 2015

    Nurve , Jan 5, 2015 :
    Thanks brother for your kind words. Liked your idea.Will edit my request.

    kidrow likes this.
  18. abhishekr
    Gingerbread Jan 5, 2015

  19. CosmicPaladin
    Jelly Bean Writers' Club Jan 5, 2015

    CosmicPaladin , Jan 5, 2015 :
    Good KT :D nice read on my way back from office :p

  20. Mr kryptonite
    Ice Cream Sandwich Jan 5, 2015