The protective film made of tempered glass, of Japanese origin (AsahiGlass), is designed to withstand even sharp objects: knives, cutters and keys.
In case of a strong shock, the foil will break, protecting the phone screen.
High sensitivity to touch.
The surface of the screen is cleaned and degreased beforehand with alcohol, then it is wiped well with the napkin included in the package to remove any residual traces left from the first operation;
This is fixed, without touching the adhesive surface of the film (the part that sticks to the screen), respecting all the cutouts corresponding to the type of phone.
Then press gently, with the help of the spatula, on the entire surface of the foil to make it stick perfectly.