The bleed through could also be print through. It actually doesn't look as
bad as I thought. I would start with a low temp bake (about 40 Celsius) for
24-48 hours.Next I would try to unspool and clean a short length of tape to
see if any flaking occurs. If not I would clean the rest of the tape and
try to play. If it still give trouble I would rebake for antoher 24 hours
at 55 Celsius.
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On Tue, Sep 26, 2017 at 11:56 PM, Eli Bildirici <
[log in to unmask]> wrote:
> We all just double-checked and it looks like polyester rather than
> acetate. My guess is the angle of my phone and the way the sunlight was
> hitting the tape made it look wrong. Do you have any advice re baking?
> September 26 2017 4:27 PM, "John Chester" <[log in to unmask]> wrote:
> > On 9/26/17 4:10 PM, Ted Kendall wrote:
> >> If you are getting what I think you mean by bleedthrough, bits of >
> oxide have already lifted and
> >> stuck to the back of adjacent turns. If > you have played it, it's
> probably too late to do much,
> >> but you could > start by baking and see what can be salvaged.
> > The loose end of the tape which I see in the photos is red oxide with no
> backcoating. Tapes
> > without backcoating rarely need to be baked. If any of the tape on this
> reel is acetate base, it
> > should absolutely not be baked. To check for acetate base, hold the reel
> up to a light -- if you
> > can see light through the tape pack, it's acetate.
> > The nightmare scenario is a mixed reel that's got sticky-shed tape on
> the outside, and acetate tape
> > further into the reel. In that case, you pretty much have to decide
> which you will save, because
> > you probably can't save both. Baking will ruin the acetate, and
> unspooling the sticky-shed tape
> > without baking may leave large chunks of oxide stuck to the backcoating.
> > -- John Chester