What causes the car wrap film to lift-off the surface is often hidden in the fact how much that film was stretched too much during application.
You should know that for most cast films the maximum stretch is 30%. Therefore, if you scratch beyond that, the adhesive layer will thin-out and that will lead to defects. In other words, the wrapped film will lift-off the surface.
- We place the paper on the recess and and mark the beginning and the end of the recess. This is the original length of the film.
- We push the paper in the recess until it makes full contact with the surface and mark again the end and the beginning of the recess.
If the original length of the film is 16mm and the stretch is – 4mm, then you need to stretch the film up to 25%, which is lower than the maximum (30%). In reality we divide 4 to 16.
Pay attention to the 30% stretch rule!