How to tear off the primer after tearing off the photo advertisement?

1. Wet the stubborn small advertisement with hot water first. Small advertisements with film should be put on the bed with water first, and the film on it should be removed from one side.

2. Wipe hard with an eraser, just like wiping pencil words. After a while, you will find that the glue under it begins to soften.

3, continue to wipe, and then remove the protruding glue, continue to wipe, you will find that the glue is gone.

4, soaked in acetic acid, and then wiped off with a cloth.

5. Blow it with a hair dryer, and then bake the glue to make it fall off.