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Dave - Rick Utley (FPC), Tom Tisch (Lipsner-Smith), David
Harrington (Eastman-Kodak) and I recently hosted a work group at
the AMIA (Association of Moving Image Archivists) Toronto
conference which dealt with alternative solvents for film
cleaning. The AK225 solvent was one of the alternatives
recommended for use, provided you can afford it. The overwhelming
choice as a replacemnt for methyl chloroform is perchloroethylene
(the same stuff used in wet-gate or immersion printing),
especially if you consider its cost. I pay about $0.78/lb (vs.
around $15/lb for AK225) in the Dayton area, where our Lab is
located. The other down-side of all of the replacement solvents
is the fact that they CANNOT be used with Lipsner cleaners other
than those with recycling built in (CF3000 or higher). At their
cost, you wouldn't want to do it any other way. I'm afraid your
looking at replacing the CF-200 when you run out of Methyl
Chloroform, but the solvent savings will help to offset the cost.
Tom Tisch can provide more guidance in this area and can be
reached at 800-323-7520.
Let me know if I can be of further assistance.
Supervisor, Motion Picture Preservation Lab
The Library of Congress Motion Picture Conservation Center
(513)258-7220 : FAX - (513)252-3019 : Kweissma at mail.loc.gov
--- End of forwarded message from <KWEISSMA at MAIL.LOC.GOV>
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