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Home » Memory of the World » Memory of the World Events » Endangered Heritage
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Decline of tapes
Decline of tapes

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v_charneau



Registered: December 2004
Posts: 4,164
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The greatest risk to magnetic tapes results from the instability of the chemical binders. A considerable number of video and audio tapes, especially those produced during the 1970’s and 80’s, are suffering from pigment binder hydrolysis. Atmospheric moisture is absorbed by the pigment binder causing the polymer to hydrolyse and loose its binding properties. Tapes of this kind deposit a smear of magnetic particles onto the replay heads.


This clogs the heads and swiftly makes the tape unreadable. This problem has been found especially in hot and humid areas where many tapes do not last longer than a few years.
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Additional Info
Keywords: magnetic tape video audio
Photographer: Dietrich Schüller
Copyright: © Phonogrammarchiv, Austrian Academy of Sciences
Place: Vienna
Country: Austria
Website: [ link ]

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