Scotch 777 "blue label" tape blues confirmed

Adrian Stoness tdk.knight at
Fri Jul 19 22:59:40 CDT 2019

same as sticky shed syndrome?

On Fri, Jul 19, 2019 at 10:22 PM Chuck Guzis via cctalk <
cctalk at> wrote:

> This is in reference to my earlier post about Scotch 777 half-inch
> open-reel tapes.  I'd reported that I encountered a tape that displayed
> binder bleed, such that the tape would stick to the heads and guides.
> This was a tape that had been both baked and cleaned.
> Coating the tape with a film of cyclomethicone allowed it to be
> successfully read.
> In the latest batch of tapes, I found another one--it behaves identically.
> These appear to be only the blue foil-labeled 777s; the yellow paper
> labeled ones are fine.
> I estimate the manufacture date to be about 1969-70.
> Chuck

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