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Re: [ARSCLIST] powder-like substance from open reel tapes
It doesn't seem to be backcoated could you ellaborate please.
John
Quoting Steven Smolian <smolians@xxxxxxxxx>:
> Unless the tape is backcoated- dull, not shiny, I expect the source
> of the
> problem is other than that causing sticky shed.
>
> Steve
>
> ----- Original Message -----
> From: "John Loy" <jloy@xxxxxxxxxxxxx>
> To: <ARSCLIST@xxxxxxxxxxxx>
> Sent: Wednesday, September 29, 2004 1:59 PM
> Subject: Re: [ARSCLIST] powder-like substance from open reel tapes
>
>
> > Steve,
> > The tape is a TDK 150 from around 1974. So far they don't seem to
> > exhibit any audible or physical properties of sticky-shed. Do you
> think
> > this powder is a symptom of sticky-shed that I do not know about?
> or
> > could it be a chemical effect of the polyester backing? thanks for
> > getting back to me any information is helpful.
> > John A. Loy
> > Audio Preservation Engineer
> > Southern Folklife Collection
> > UNC Chapel Hill
> >
>