Can Guanfudun be repeatedly torn and pasted?

A: It is not recommended to repeatedly tear and apply. The reasons are as follows: ① Adhesive layer adhesion: Guanfudun uses optical transparent adhesive (OCA). After the first application, the adhesive layer adheres to the screen. Repeated tearing and application will reduce the adhesion of the adhesive layer, affecting the subsequent adhesion degree (which may cause lifting edges and bubbles). ② Dust intake risk: Each time the film is torn off, both the screen and the inner side of the film are exposed to the air, which is prone to dust accumulation. Dust spots may appear after re-bonding. ③ Film deformation: Repeated tearing and pasting may cause the film to bend and deform, especially at the 2.5D edge, which affects the flatness of the adhesion. ④ Screen coating: Frequent peeling and pasting of the film may wear down the original oleophobic layer of the screen (although the probability is low, repeated operations carry risks). Under what circumstances can it be reapplied: ① If it is found to be obviously crooked or dusty within a few minutes after application, it can be carefully pulled up and realigned (the adhesive layer has not yet fully adhered). ② When pulling it up, use transparent tape to stick one corner and gently pull it up. Do not pick at the edges with your hands. Before reapplying, use a dust-removing tape to stick away the dust on the screen and the inner side of the film. Under what circumstances is it recommended to directly replace the piece: ① It has been applied for several hours or more (the adhesive layer is completely bonded); ② There is still a problem after tearing and pasting it more than twice. ③ The inner rubber surface of the membrane is covered with a large amount of dust or fingerprints (which is very difficult to clean thoroughly). The Guanfudun 2-piece set costs 159 yuan. Considering that the film application might fail, one piece is provided as a backup, which is much more effective than repeatedly tearing and applying one piece.