tape baking

Chuck Guzis cclist at sydex.com
Sun Jul 2 13:45:29 CDT 2017

On 07/02/2017 11:34 AM, Warner Losh via cctalk wrote:

> What's the theory behind baking floppies? For tapes it makes sense to help
> with self-adhesion, but what's the benefit to single surfaced media that
> doesn't overlap?

The audio tape guys pretty much took the lead on this one, probably
because they ran into the problem earlier.

The reason for baking is to ameliorate the problem of binder
degradation.  It seems that baking at a mild temperature (there is a
patent on this method), tends to "melt" the binder back into
workability.  If you've ever stuck a floppy into a drive and heard a
loud squealing sound and wound up with a cookie with "see through" rings
on it, you've experienced binder failure.

There's quite a bit of information on this on the web.


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