Quote:
Originally Posted by paulsherwin
The sticky shed problem seems to be largely down to a particular Dupont binder which most American manufacturers used at one time or another, mostly for standard play semipro/pro tapes. I would hope that Quantegy knew about this problem and were using a different binder.
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Ampex claimed to have fixed the problem by the late 1980's but the tapes I have from that era have gone sticky. I was surprised when I first started to encounter it on these newer tapes from our studio but I don't think Ampex ever really got to the bottom of the problem, despite their claims and protestations. They symptoms would have been well known at the time of the Quantegy rebranding but not the solution it appears. Unlike most manufacturers at the time (3M, BASF, Agfa, etc), Ampex/Quantegy were not a chemical company so I wonder if they lacked the in-house expertise to fix the issue.