Glass Warfares – Gorilla vs Dragontrail

Just imagine that beautiful and vibrant screen of your smartphones broken into pieces when you dropped your phone by mistake or when you hit the charger wire with your hand just because you were being careless. Does it horrify you? Of course, it horrifies me because after purchasing an 800$ phone I simply don’t want to put another 300$ in the screen. That would just be a nightmare. This is where screen protectors come in.

Hence, we require some strong and durable touch screen panel protectors which you commonly call as Gorilla Glass or the Dragontrail Glass. Why just two? Because they are the top players.

Gorilla glass:

Gorilla Glass

Now, Gorilla Glass is just a marketing term used for a specialized glass developed and manufactured by Corning just like Samsung used for its Super AMOLED technology. The Gorilla Glass is presently is in its fifth generation and the latest top end flagship device out with Gorilla Glass 5th generation is the Samsung Galaxy Note 7. The best part about Gorilla Glass other than its durability is its light weight and thin design. Actually, Gorilla glass became popular when Steve Jobs started using it for the first iPhone.

So, after knowing the basics about the glass you might be curious about how the glass is made. So, here it is and it is really simple and easy too.

The glass is having Sodium on its surface but during the ion-exchange process, when the glass is dipped into a hot bath of molten salt (which comprises of alkali like potassium which on the atomic level are greater than Sodium in atomic size) at 400 degree Celsius. In the hot bath, the sodium ions leave the glass surface and the potassium ions replace the empty space created. These large ions take up more room and are pressed together when the glass cools, producing a high compressive stress on the surface of the glass. Gorilla Glass’ composition enables the potassium ions to diffuse far into the surface, creating high compressive stress deep into the glass. This layer of compression creates the surface that is more resistant to damage and this is what makes the glass “super” strong.

In 2005, Corning started experimenting with the present form of glass they had and they came up with Gorilla Glass 2 protectors in 2012, which was immediately followed by Gorilla Glass 3 in 2013. Being constant in their research the company launched its 4th generation line the subsequent year in 2014. Presently as already mentioned, Gorilla Glass 5 is ruling the market which was launched in 2016 itself.

Samsung Galaxy Note 7 with Gorilla Glass 5


Dragontrail Glass:

 The Dragontrail glass is created by Asahi Glass co. which is a Japanese based firm. It basically is an alkali-aluminosillicate sheet glass engineered for a combination for the formation of a protector which is thin, light and damage resistant similar to Corning’s Gorilla Glass. The material’s primary properties are its strength and its hardness. It is usually used by the smartphone companies based in Japan and other lower end smartphones. Asahi Glass co. has also launched its DragontrailX  glass now.

Dragontrail Glass


Meizu M2 Note with DragonTrail Glass

 Sapphire glass protectors:

 Sapphire glass is the glass used by Apple Inc. Firstly, what is Sapphire? Sapphire is actually one type of mineral called corrundum(Al2O3). Sapphire glass, as the name might create an illusion is not actually a glass.  Alright! Then what is it? Sapphire glass is actually a single crystal which is transparent and synthetically made. Interestingly, Apple used Sapphire glass in iPhone 5s for the home button and the camera lens.


iPhone 5s Home button with Sapphire glass

In exact words of Mr. Tony Tripney, Corning’s Senior VP when asked to comment on the Sapphire glass at the Morgan Stanley Conference “When we look at it, we see a lot of disadvantages of sapphire glass versus Gorilla Glass,” said Tripney. “It’s about 10 times more expensive. It’s about 1.6 times heavier. It’s environmentally unfriendly. It takes about 100 times more energy to generate a Sapphire crystal than it does glass. It transmits less light which… means either dimmer devices or shorter battery life. It continues to break. I think while it’s a scratch resistant product it still breaks…”

That was all about the glass warfares and now we hope that you have got a clear understanding of what are the various screen protectors.