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Author Topic: Twisty film soak in film renew?
Robert Lee
Film Handler

Posts: 70
From: San Francsico, CA, USA
Registered: Jan 2017


 - posted June 26, 2017 12:53 AM      Profile for Robert Lee   Email Robert Lee   Send New Private Message       Edit/Delete Post 
I have a 16mm film that becomes twisty like Tweezlers as you pull it out of the reel. Will soaking it in film renew make it flat again?

When you project the film some parts of the frame can become out of focus.

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Terry Sills
Phenomenal Film Handler

Posts: 1387
From: Weymouth,Dorset,England
Registered: Oct 2012


 - posted June 26, 2017 02:10 AM      Profile for Terry Sills   Email Terry Sills   Send New Private Message       Edit/Delete Post 
Robert
Unfortunately not. This is the first stage of the film degrading and there is no known cure. Is there an acidic smell, like vinegar, from the film? If so keep the film away from other films as this syndrome can spread and affect any other films you have.

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Gary Crawford
Jedi Master Film Handler

Posts: 977
From: Manassas, VA. USA
Registered: Jun 2003


 - posted June 26, 2017 03:32 PM      Profile for Gary Crawford   Email Gary Crawford   Send New Private Message       Edit/Delete Post 
I've actually had good success with several twisty films. Winding down tails out and flipped so the sprocket holes are away from you....winding tight like that. immersing in Film Renew for as much as a month. then taking it out, drying it out....and in needed, repeat the process. I'd had some films that were so..warped, they would not run. And many of them I've at least kept runnable. As far as I know, there's no real cure for that vinegar chemical reaction, but I've kept films runnable for years beyond what many had told me. Just getting a few more runs out of them before they are inevitably beyond help. Of course, it's possible your film IS beyond help, but you have nothing to lose by trying to untwist it, at least enough to run it successfully.

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Bill Brandenstein
Phenomenal Film Handler

Posts: 1624
From: California
Registered: Aug 2007


 - posted June 27, 2017 05:17 PM      Profile for Bill Brandenstein   Email Bill Brandenstein   Send New Private Message       Edit/Delete Post 
Just last week found an exception to this: film with scratch-guard coating on one or both sides will not flatten. So the Filmrenew method will help the emulsion resize to the shrunken base without damage, but plastic or shellac anti-scratch coatings ruin this altogether.

How to know? Soak a little piece in water and see if either side turns milky white. And if it does, you still can't scratch it, though you might be able to tear it!

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Adrian Winchester
Film God

Posts: 2870
From: Croydon, London, UK
Registered: Aug 2004


 - posted June 27, 2017 07:07 PM      Profile for Adrian Winchester   Email Adrian Winchester   Send New Private Message       Edit/Delete Post 
Gary - could you please outline what you do to dry out a film and for how long? Do you (e.g.) hang the core over a rewinder? Presumably the saturation would leave it moderately wet, even after the drying?

--------------------
Adrian Winchester

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