Most cars have a black ceramic “frit” edge on the rear window. Sometimes the ceramic edge is straight and flat, sometimes it will have a dotted edge. These black ceramic dots are quite thick on most cars and prevent the film from sticking to the area between the dots. This results in a whitish looking strip trimming the glass. Typically this isn’t very noticeable, however some cars have a wide band of dots trimming the top of the rear window. This area is so wide that the whitish looking area created is more pronounced. Unfortunately this effect is unavoidable.
