1, clean up the previous paste first, or the new paste will affect the firmness.

2. Then tear off the original window film and paste a new one. The abrasion is not too serious. You can try to apply some toothpaste to the surface of the car film, and then gently wipe it with a soft cloth to see if you can make the scratches lighter.

3. The scratches on the window film are uneven with raised marks around them. You can use a hair dryer to gently blow around the scratch, and then smooth the raised place, which can cover the scratch well and make it inconspicuous.

4. Don't wash the car first and don't open and close the window after the window film has just been pasted. It will take at least a week to do these operations. Choose foggy days when pasting the film to avoid dust on the car glass at any time.

5. If blistering is found on the membrane edge, it should be repaired at the construction site within 24 hours. If it exceeds the time, it will be dealt with. Because the glue around the bubble has dried up, the membrane can't move any more, and creases will definitely appear during treatment.