Re: [ARSCLIST] Damaged Tapes

["Richard L. Hess" <arclists@xxxxxxxxxxxxxxx>]

At 05:14 PM 2007-12-04, Mew, Peter wrote:
> Thanks to everyone who replied and to those who still might
>
> These tape are definitley no suffering from "Sticky Shed" We know how to
> deal with that and have our own ovens for the purpose
> This is something new to me
> I might give the" try and get signal back from the oxide on the leader,
> and add that to the original" approach, to get back the really badly
> damaged bits

Peter,

I'm aware that it's not SSS -- as in the message I sent you off-list, 
the one tape that exhibited this worst was Maxell UD35 (not the later 
back-coated versions) that have never suffered from SSS.

Jim Wheeler once talked to me about tape against ruby guides and the 
bonding through van der Waals forces -- he was able to break some of 
that free on a spacecraft headed for the outer planets.

I do not yet know what causes this adhesion, but the thermal cycling 
I was alluding to wasn't for baking like SSS but to create enough 
inter-layer creep to perhaps break the undesired bonds.

Cheers,

Richard


Richard L. Hess                   email: richard@xxxxxxxxxxxxxxx
Aurora, Ontario, Canada       (905) 713 6733     1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.