What Is Tempered Glass Screen Protector For Smartphone?

What Is Tempered Glass Screen Protector For Smartphone

Have you ever been asked a question like “what is tempered glass screen protector for smartphone”? Well, to me, it’s a fair question anyone that is using a smartphone would be asking. You know, it is much cheaper to replace a damaged screen protector than the main screen itself.

So, what is the tempered glass screen protector for the smartphone? 

Tempered glass screen protectors are among the several types of screen protectors out there. And they are considered to be among the grandpas of screen protectors. They are tough with regards to drop and scratch protection but lack the self-healing capabilities that TPU (thermoplastic polyurethane) has. So, with a tempered glass protecting your phone, you don’t have to worry about sand or other objects damaging your phone screen.

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Read to get more information to make an informed decision with regards to the tempered glass screen protector and the other options available.

Tempered Glass Screen Protector: How Is It Made?

Take a look at this scenario. You just got a brand new phone, and it’s your dream device. But because of the excitement, you forgot to fix a screen protector. Then after a couple of days, the screen starts looking old and unattractive.

The problem is not with the device but the sand and objects that robs on the screen. It is also a disaster when a phone without a screen protector falls to the ground from a certain height.

In such cases, the screen might still have a crack, but it won’t be that severe. You can even be making use of the phone and go for a replacement when you have the cash.

So, having a screen protector for your smartphone can do you a world of good.

However, here is how the tempered glass is manufactured:

The tempered glass screen protector’s manufacturing process is an interesting one. Glass is taken through several thermal and chemical treatments. During the process, higher temperature ovens are used.

In this case, the glass used is heated to approximately 650 degrees Celsius, and then there is quick cooling. Furthermore, those making tempered glass are very careful about the duration that the glass would be in the oven.

The longer it gets heated with such an enormous amount of heat, the less its flexibility and the higher the strength.

But the various treatment processes not only increase the glass strength. Whenever it breaks, it will break into smaller pieces. Plus, you won’t find the parts with sharp edges, which can be of high risk to others.

Now that is not all you need to know about tempered glass production. It still has to pass through three stages of tests before it can be sold and used.

Let me explain the various Tests. 

The first test is the Hardness Test. It is essential for companies producing these screen protectors to perform this test to maintain a high-quality standard. It is mostly a sand and knife test. They have to use both test items on the product to be sure they won’t scratch the glass when in use.

Next is the Breaking Test. It involves bending the glass about a half-circle. What the company looks out for is this. If the glass breaks, but in two segments, then it has passed the test.

The third test is Dimension Checks. In this test, those in charge have to check to ensure that all the tempered glass screen protectors in the same batch are of equal sizes. As you know, these screen guards come designed for specific phone types because the glass of phones differs.

The final stage in tempered glass production is the application of glue. The glue is applied so that the glass will last longer in storage.

So, you can see how the popular tempered glass screen protectors are produced. The process looks super easy and quick on paper, right? Well, I will like you to know that it’s a demanding task. What you see as tempered glass requires some level of expertise to get right.

The manufacturers also need to pay attention to details and make the right decisions so that the product will turn out good.

Tempered Glass Screen Protector: Other Uses Beside Mobile Devices

Most people believe that tempered glass screen protectors are used for phones alone. Well, if you are one of them, know that tempered glass screen protectors have numerous applications.

They are used for the following:

  • Safety glasses
  • Car Windshields
  • Phone booths
  • Microwave oven
  • Mobile phones

So, these are some of the uses of tempered glass. But in recent years, they have become a must-have for mobile devices.

I would also like you to know that tempered glasses are not the only item used for screen protection. Let’s figure out what the others are.

Screen Protectors: Different Types Available

Type the word “screen protector” into Google search or Amazon. The result that will pop up will amaze you. You see, there are a plethora of screen protectors on the market. And they differ in price point, brands and sizes.

Let’s look at them one after the other.

Polyethylene Terephthalate – PET

These are the plastic protectors you will find on food containers and water bottles. They are also very common in the market. But when it comes to impact and scratch protection, the polyethylene terephthalate ranks low.

However, one thing that sets the PET apart is its price tags. It is very affordable. Again, you will find that this screen protector is super thin and lightweight. Even when fixed on a mobile device, it is difficult for people to figure out.

Thermoplastic Polyreuthane – TPU

The TPU is one of the oldest screen protectors around. But unlike the PET, it does not have a smooth feel. Also, TPU’s installation is quite tricky despite it being flexible.

Again, unlike PET, the TPU screen protector can be fixed edge-to-edge on phones. The TPU also does have better impact protection than PET. But it is limited when it comes to healing powers.

Nano liquid

Advancement in technology has hit every facet of life. Most things we thought were impossible have been achieved, one way or the other. The screen protectors have advanced too.

This time around, we now have the liquid type of screen protectors. They claim that phones can be protected by merely swabbing a solution on the screen, and next, you have to buff it off.

And yes, the nano liquid screen protector does provide some layer of protection. But the only concern I have is that it allows scratches to get to your phone’s main screen too easily.

So, these are the various types of screen protectors that are flooding the market these days. As you can see, they all have their advantages and disadvantages.

Now, let’s go over to the benefits of using the tempered glass screen protector on your device.

Tempered Screen Protector: Is It A Wise Choice For Smartphones?

Well, remember I said every screen protector has its advantages and disadvantages. Well, the tempered screen protector is not exempted. But then, there are things about this screen guard that you will entice you. Check them out below.

1. Better Look and Feel

Tempered Screen Protector Is It A Wise Choice For Smartphones

The tempered screen protector once fixed is almost like your phone screen. Compared to the plastic screen protector, one’s finger tends to slide smoothly on the glass protector.

Furthermore, if you are someone who enjoys watching YouTube or Netflix media content, the glass protector will be a better option for you. It won’t lower the quality, display sharpness or color of the video. You will feel like you are watching directly from the original screen of your phone.

2. Easier to maintain

When it comes to cleaning, tempered glasses are a breeze. Just use a piece of clean cloth (ensure it is not wet) and wipe the face of your phone. That’s it. You will be able to get rid of grease, oil or any form of dirt from the screen.

3. Increased durability

The tempered glass screen protector is made to last long. It is durable and considered sturdier when compared to the plastic screen guards. Another thing you will like about tempered glass is how they protect phone screens from being destroyed.

This screen protector is resistant to scratch and absorbs shock better. So, even when you accidentally drop your mobile phone to the ground, tempered glass would still offer better protection than the plastic-type. The glass protector might even crack instead of the screen of your phone.

4. Easy installation

When it comes to installation, tempered glasses are a breeze. Wait a minute; have you ever tried installing the plastic screen protector yourself? It can be too complicated sometimes.

But, when fitting tempered glass, all you have to do is clean the screen of your phone and mount it right there. The installation is super easy.

Wrapping It Up

The question “What is tempered glass screen protector for smartphone” has a straight forward and simple answer. The tempered glass screen protector helps to keep the main screen of the smartphone intact. An unprotected screen can easily suffer scratches and even crack. But when you have a screen protector, there will be a level of protection of your phone screen. And even when you take off the protector, your phone screen will be brand new like you just bought the device.

You May Like These Articles As Well:

How To Remove Scratches From Gorilla Glass

Are The Iphone 7 And 6 The Same Size? What You Need To Know


  1. These are the granddaddies of screen protectors. They don’t have the self-healing abilities of TPU, but they’re tougher in terms of scratch- and drop-protection, and these days you can get them pretty inexpensively.

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