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CMI Accessories / Protection  / Tips for buying & applying Tempered Glass Screen Protectors

Tips for buying & applying Tempered Glass Screen Protectors

Tempered glass screen protectors are one of the most popular and effective options to protect your phone or tablet screen from accidental damaged caused from everyday use. They ensure your screen stays in pristine condition and free from scratches so when the time to upgrade comes, it will look as good as they day you bought it!

How do they work?

Tempered glass screen protectors work by shielding the underlying screen glass from surface-level damage caused by contact with hard objects such as coins and keys. Additionally, they offer protection from low-level drops by providing a buffer layer which absorbs the force of impact. In some cases, the screen protector will self-sacrifice, breaking due to the amount of force but doing so instead of your phone screen. For this reason alone, they are a worthwhile investment compared to the cost of a full screen replacement.

Features of a quality Tempered Glass Screen Protector?

Tempered glass screen protectors provide the highest level of protection for your screen. They are constructed from multi-layered, reinforced glass. When choosing a screen protector there are a few main features to look out for. These include (but are not limited to):

Hardness

Hardness for tempered glass is measured on the Mohs Hardness Scale (link to external info). A 9H hardness level rating is the most common and provides excellent scratch resistance. It also provides protection from low-level drops, often sacrificing the protector instead of your screen.

Thickness

The thicker the glass the more it will affect the touch sensitivity of your device. As a guide most screen protectors sit within the range of 0.2 (being more expensive) – 0.4mm (cheaper) with 0.33mm being the most common. Our Kore range of premium tempered glass (link) has been specifically designed at 0.26mm (2D glass) – 0.3 mm (3D glass) which we’ve found offers the best level of responsiveness, clarity and protection.

Oleophobic Coating

Oleophobic coating is an additional layer found on most screen protectors which provides resistance against fingerprints, smudges, grease and dirt. The key word here is ‘resistance’, this coating is not fingerprint and smudge proof but a quick wipe with a cloth (without any cleaning agents) will have your screen crystal clear again. In comparison, glass without the oleophobic layer is usually harder to clean and wiping with a cloth often spreads the grease across the screen.

Shatterproof or Anti-splinter Film

An ultra-fine film layer that prevents pieces of glass splintering off if the screen protector cracks or breaks. This layer also keeps the protector intact as a single piece allowing you to safely remove and dispose of.

Fit & Screen Coverage

The four corners of your device are the most vulnerable areas; therefore, you would naturally think that choosing a screen protector with greater coverage would be a better option. Whilst some do provide additional protection for the edges no screen protector will ever offer the same level of protection as a case, which is why we recommend always using one.

There are two common types of tempered glass screen protectors on the market:

2D Tempered Glass

  • Smooth touch bevelled edge
  • Very slight gap at screen edges
  • Case-friendly design
  • Full glass surface is adhesive
  • Generally, cheaper to buy

3D Tempered Glass

  • Obvious curved edge
  • Full coverage
  • Best all-round protection
  • May not be compatible with all phone cases
  • Edges of glass is adhesive
  • Generally, more expensive to buy
  • Can be more difficult to apply

Often the type of glass you’ll be able to buy will depend on your phone model and whether it has a curved edge screen design.

How to apply a Tempered Glass Screen Protector?

In most packs you will receive:

  • Tempered Glass Screen Protector
  • Cleaning wipes (wet & dry)
  • Dust sticker
  • Guide sticker/s
  • Some may also include an applicator tray

Step 1: Clean off any dust and fingerprints from the surface of your device screen with the wet wipe.

Step 2: Repeat with a dry wipe to absorb all the moisture. Any excess moisture will weaken the adhesive of your tempered glass screen protector.

Step 3: If there are any particles still left on your screen, use the dust sticker to lift them off.

Step 4: If your screen protector comes with an applicator tray, place your phone inside of it.

Step 5: Remove the package film from your tempered glass screen protector, and carefully align it to your phone screen. It helps to attach guide stickers on the top and bottom edges of your screen protector, so your fingers don’t get in the way.

Step 6: Lay the tempered glass screen protector down and allow it to adhere to your device screen. If it looks off-centre, gently lift and realign it. Be careful not to bend the glass as it may cause it to crack or break

Step 7: Wipe the applied tempered glass screen protector with a cleaning cloth. If you see any small bubbles underneath the screen protector, firmly press to push the bubbles off the edge of the screen.

Additional tips:

Tempered glass screen protectors can vary in design depending on your device model. For example, some have a hole where the fingerprint reader is situated, while others have a thinner area of glass to increase sensitivity. When installing these types of protectors, you may need to pay particular attention to the area by rubbing over it gently to ensure proper adhesion of the glue and correct function of the fingerprint reader.

If you have purchased 3D tempered glass, it’s important that the alignment is done precisely to ensure the desired fit is achieved and all functionality of the touch screen works correctly.

In any case, incorrect installation will result in poor adhesion of the glass or interference with touch screen functionality. If you don’t feel comfortable applying your own tempered glass most stores will have glass application services available for customers.

In conclusion

It’s important to note that a tempered glass screen protector will not protect your screen from everything and is not unbreakable. It is however the best option to protect your device’s screen from accidental damaged caused from everyday use and for the cost is a worthwhile investment in comparison to a screen repair.

We recommend the range of Kore Tempered Glass Screen Protectors, available at selected Telstra shops and other telecommunication retailers.