LED super / adhesive bad

The packaging is exemplary: ANTSTATIC bag and foam sheets.
The 'chain' has a curved poured into soft transparent plastic. Suitable for cutting points are clearly marked and have bare spots that are suitable for removal of the plastic for soldering of connecting cables. Ausserden there is every 50cm section also sites that are already prepared for easier soldering.
The light is very pleasant and very evenly by the high density of LEDs. So I am satisfied absulot (5 Stars).
Now for the negatives:
The adhesive sheet (3M) had already succeeded in many places and also the protective paper stood out equal when rolling.
Maybe my product was very old or have been poorly stored (0 stars).