Because it's obsolete. Obsolete means that people have made something better and no longer need the first version.
Being 'obsolete' means that something better has been found to replace it.
Obsolete means 'not in use'. Possibly the makers have discovered a better form of that glue, or they found long term unfavorable results and stopped making it fop economic reasons.
to have more tape to use
dinosaurs are obsolete.
More explanation needed.
Silicone adhesive.
Another word for "no longer in use" or "not using any more" is "obsolete." This term refers to something that has fallen out of practice or is outdated, often replaced by newer alternatives. Other synonyms include "outdated," "defunct," and "discontinued."
Obsolete
Only use clear 100% silicone, no need to wipe any off underneath.
You can use obsolete to describe anything that is no longer used in a particular way.Examples:Using an actual dictionary is becoming obsolete with the use of spell checkers and online dictionaries.Video cassette recorders have become obsolete with the rise of DVD players and digital video recorders.
To effectively remove adhesive hooks from a wall, start by gently heating the adhesive with a hairdryer to soften it. Then, use a putty knife or credit card to carefully pry the hook off the wall. Finally, use a mild adhesive remover or rubbing alcohol to clean off any remaining residue.
The dictionary of 2001 was so OBSOLETE that the library was forced to take it off the shelves.