Screen Protector

A Guide to Tempered Glass Screen Protectors and How They Secure Your Devices


If we have purchased a new mobile, we may consider protecting its screen with a sheet of tempered glass. Many physical stores sell us and place the glass in seconds. But if you are thinking of putting on the screen protector yourself, don’t do it without reading these tips first.

Even if you’ve purchased a refurbished phone, it is wise to want to protect your investment.

Either because we don’t have time to go to a store or because we want to save a few pounds, many users choose to buy their mobile screen protector on the internet and put it on themselves at home.

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Although today almost all free cheap smartphones and mobiles have super resistant glass, the truth is that it never hurts to protect your screen just in case. You can see broken, scratched or broken screens everywhere, so, apart from using a case, it is essential to add a protector to avoid the occasional scare if it slips or falls to the ground. The main thing that tempered glass provides is more excellent protection against scratches and hard blows that your device can suffer at any time.

But, also, you have to know how to put them on, because many times there are bubbles or accumulation of dirt under the glass and we may not achieve the cleaning and hygiene effect that we want. That is why we propose a series of tricks and tips to keep in mind when placing the tempered glass screen protector on your terminal.

Choose the Type of Protector

The first thing we must do is choose the type of protector we want, especially if we’ve just bought something as valuable as an iPhone. There are several types, but the most common is to wonder between a tempered glass protector or a hydrogel protector. We’ve talked about the differences between them, so if you are still in doubt, we recommend that you read the article and decide which one best suits your needs.

Absolute Cleaning of the Terminal Before Placing the Glass

Before putting the protector on, it is essential to choose the surface to carry out the task. Perhaps you think they all work, but if you choose a non-slip surface, you make sure that the mobile cannot move and put the protector on without problems. For this, we recommend a non-slip pad for this type of work.

First, we must remove any protective cover on our free phones to prevent them from interfering with the entertaining task that awaits us. Next, we must wash our hands to avoid sticking any trace of dirt to the screen. Then, we proceed to clean.

Even if it appears clean, it is best to ensure that it is 100% free of dust, dirt or grease. A homemade method could be to use a soap-free wet wipe to clean the entire surface thoroughly, although most tempered glass packs already include their washcloth. If we have sanitary alcohol, we can dilute a part with water and smear the corner of the cloth to proceed with cleaning. We recommend an excellent trick to check that the screen is spotless: place it horizontally and against the light.

How to Fit a Tempered Glass Screen Protector

The first thing to do is place the phone horizontally in front of us. Then, if you are skilled enough, you can remove the protective plastic from the adhesive part, set it and make it perfect and without bubbles. But this is not so easy; you run the risk of touching the adhesive portion with your fingers and leaving a significant footprint or that when we put it on, we have a bubble that we cannot avoid.

Therefore, there is a trick known as “the hinge”: what we must do in this case, and before exposing that delicate adhesive part, is to place it without taking it off on top of our phone, perfectly aligned with this. We then put a couple of pieces of adhesive tape on one of the sides, joining the protector and the phone to be like two hinges that allow it to move as if it were a cover.

When we put the tape or tape, it may be that the protector will move again and become misaligned from the phone. With great patience, we will repeat the operation until it suits us. We lift the protector where we have not stuck the tape, remove the plastic from the adhesive, and drop it very carefully back onto the phone. It should be aligned again if we have done well with the previous glueing of the tape strips. A bubble may appear; this is a not crazy possibility, but it has a solution: we press with our thumb, moving the air bubble outwards to expel the air around the edges, and the bubbles disappear. We take off the “hinges” of tape, and we have it.

But I want it to be impeccable. How do I do it? Some people are more perfectionists than others, and they want things to fit them flawlessly. There is a trick that will help us do this: The “shower” trick. In this case, we will place the tempered glass screen protector inside the bathroom moments after we finish showering. What is the purpose of this? The humidity present in those moments in the shower means that the dust and other particles are not floating in the air at that moment, with which we make sure that not a single speck of dust can get between the protector and the screen itself.

Some More Good Tricks

With “the balloon,” we inflate a balloon and rub it against our tee-shirt or jersey to produce static electricity. If we then leave it next to the mobile, it absorbs all the dust and particles in the nearby air.

“The suction cup”: if we use a small suction cup (the kind that is generally attached to bathroom tiles, for example, to hang towels), we can hold the tempered glass protector with it to avoid touching it with the fingers and that some fingerprint remains impregnated.

Place Hydrogel Protector

A hydrogel protector placement is somewhat different from that of tempered glass. Firstly, you must take off the small holes. Once done, we will adjust the sheet to the screen and press it to fix it. Next, we take off one half, and with the help of a spatula,  we pass it to stick the first layers. Next, we do the same with the other half. Finally, we can glue the protector with the spatula and remove the surface layer. The protector will now be ready.

What If There Are Bubbles Left?

If we have annoying bubbles, something prevalent even when professionals place the glass, we will remove them quickly. We will have to carry the air bubbles towards the nearest side to do this. We will have to press our finger on it until we can eliminate it.

How to Prevent Scratches from Getting on Your Phone’s Screen with a Tempered Glass Screen Protector

A few years ago, we believed that protective plastic would be the perfect ally for our free phones against drops and scratches. But time has shown us that tempered glass sheets have a higher protection index and unique qualities to protect the terminal screen. Comparing these benefits with protective plastic, let’s see what they are.

Tempered glass offers an extraordinary resistance level because it has undergone thermal and pressure treatments to resist scratches, blows, and heat. Second, and due to the material’s transparency, it offers excellent clarity from which we can appreciate every detail of the images with total clarity.

We must also remember that the protective tempered glass is like a second skin for our screen. That is why it is ultra-sensitive and will ensure an unbeatable browsing experience. In addition, although it is not entirely usual or recommended, we can rectify its placement without losing its adhesion capacity.

Finally, as it has double protection, it comes with a layer on the adhesive part and plastic on the front. Thus, we will ensure a perfect coupling and avoid scratches or breakages during handling before installation in cheap free cell phones

How to Clean a Tempered Glass Screen Protector Without Damaging It

Although tempered glass screens of this type of glass may seem very beautiful, especially if you have placed them correctly, they will not look attractive if they are dirty. Unfortunately, suppose you have tempered glass for a long time. In that case, this becomes unavoidable, so before you start cleaning glass, you need to learn the proper techniques for dealing with this unique material. If you don’t follow these recommendations, you may damage it accidentally.

Prepare Cleaning Materials

First, you need to prepare a mixture to clean the screen guard. The usual way is soap and water—mix soap and water in equal amounts in a spray bottle and cap.

Washing the Glass

Tempered glass is straightforward to clean, but it can damage when you don’t know how to handle it. Any particle that repeatedly scratches the tempered glass can cause it to fracture. Don’t take shortcuts when cleaning the glass. Although they can save you time, you may completely ruin the glass.

First, spray the tempered glass screen with the soap and water mixture. Wait 10 seconds, and then clean the glass with a soft sponge. Do not use scourers, as this would be very hard on the surface. Always use the smooth side of the sponge.

Doing this to the entire pieces of glass can be harmful. It is better to clean the glass in sections, spray, wait, and clean with the sponge each part.

Things to Consider When Buying a Tempered Glass for Your Phone

So, what is a tempered glass screen protector? Yoguardu may have noticed that different protections for your mobile screen help you keep it new. The way to indicate the resistance of each screen protector is through levels of hardness. These hardness levels are on a scale of values ​​ranging from 1H to 10H.

Many tempered glass or screen protector manufacturers use the degree of hardness as one more characteristic of the product to differentiate themselves from their competitors. Possibly, in some packaging or wrapping, you see “9H resistance”.

There are also two materials for these protectors, summarised in plastic and tempered glass.

As we have already mentioned, the tempered glass protects the mobile screen. It is in the manufacturing process where it achieves its desired hardness. That is why many manufacturers of this type of product highlight the degree of hardness in the packaging, making their product more attractive.

The Mohs scale helps establish these resistance levels, which measures these products’ resistance in terms of bumps and scratches with different materials.

This scale has resistance levels rated from 1 to 10, established by resistance to scratches with different materials. Here is an explanatory table:

LevelMaterialIt can be grated with
1Htalcum powderNails
2HGypsumNails and applying a specific force
3HCalciteA copper coin
4HFluoriteThe blade of a knife
5HApatiteA knife blade and applying a specific force
6HOrthoclaseA sandpaper
7HQuartzOther glass
8HTopazCarbide and Tungsten Tools
9HCorundumSilicon Carbide Tools
10HDiamondAnother equal or similar diamond

How to Remove A Tempered Glass Screen Protector?

If a mobile tempered glass breaks because it fell to the ground several times or because our screen is full of scratches, we need to carefully remove it from our phones and replace it with a new one to give the smartphone the protection it needs again.

There are several ways to remove the broken tempered glass and, we propose you choose between two methods. Before starting, it is convenient to give a touch of heat with a hairdryer in the lower part of the screen for about 10 seconds. With this technique, we will get the adhesive of the protector to heat up and, therefore, peel off little by little.


In summary, placing this effective tempered glass protector for our mobile screen is not complicated. We do not recommend doing it in a hurry without paying attention and taking certain precautions in advance. You don’t want to end up having to recycle it for a few dozen pounds, do you?

We said that in the market, we would find dozens of options for getting tempered glass to protect the screen of our smartphone, but some stand out in protection and durability above the others and have earned a deserved good reputation.

And again, we recommend not going to the cheapest models on the market. We may be lucky to find a white blackbird, a cheap protector with superior model features, but it will not be the norm. We should always move above 15-18 pounds when choosing a protector if we want guarantees. Be careful; usually, it comes in packs of two units.

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