Nowadays screen protectors are not as necessary as they once were. Nevertheless, the Gorilla™ Glass* screen of your mobile phone can still be scratched with the sand in your pocket, or it can be cracked when you drop it. For this reason the so called «screen protectors» have become more and more popular. The cheapest ones are usually plastic films that you can stick on your telephone screen.
However, are you sure you know what you are covering your phone with? With the development of pulsed Radio Frequency source and the invention of the Ultra Fast Sputtering («UFS»), Glow Discharge Optical Emission Spectroscopy can easily answer to this question.
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