There's a piece of film on each side of tempered film. One is adhesive, and the other is unadhesive. Peel off the adhesive film and stick the tempered film to the screen. And get rid of the bubbles at the same time. when there's no bubbles, peel off te other film. And it's done! Hope it can help you!
There's two labels (label No.1 and No.2). We should peel the layer of film marked by label No.1 at first when we coat the screen with the film. Thank you. If you have other questions, you can ask me again.