A premium UV tempered glass screen protector typically boasts the following features:
* UV Curing Technology:
* This is the defining characteristic. A liquid adhesive is applied to the screen, and then a UV light is used to cure and harden the adhesive, creating a strong, seamless bond between the glass and the device's screen.
* This results in superior adhesion, especially on curved screens, eliminating issues like halo effects and bubbles.
* High Transparency and Clarity:
* Premium glass is designed to maintain the original screen's clarity and touch sensitivity.
* Often, it is advertised as having a very high light transmittance percentage.
* Scratch Resistance:
* Tempered glass, in general, offers excellent scratch resistance, often rated 9H on the Mohs hardness scale.
* Premium versions may have additional coatings for enhanced scratch protection.
* Oleophobic Coating:
* This coating repels oils and fingerprints, keeping the screen clean and smooth.
* Impact Protection:
* Tempered glass is designed to absorb impact, protecting the device's screen from cracks and damage.
* The UV curing process enhances the impact resistance by the uniform adhesion.
* Precise Fit:
* Premium protectors are cut to precise dimensions to fit the specific device model, including cutouts for cameras and sensors.
* Especially important for phones with curved screens.
* Thin Profile:
* Despite its strength, premium tempered glass is often designed to be thin, maintaining the device's sleek profile.
* Bubble-Free Installation:
* The liquid adhesive, combined with the UV curing process, helps to ensure a bubble-free installation.
* Enhanced Touch Sensitivity:
* Because of the full adhesion, touch sensitivity is better than with edge glued protectors.
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