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Topic: Novice collector - purchased films have slight odor
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Mitchell Dvoskin
Expert Film Handler
Posts: 128
From: West Milford, NJ
Registered: Jun 2008
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posted December 15, 2016 10:06 AM
> If you do decide to keep the two VS films make sure you keep them in metal containers,
NO, unless you also put molecular sieves in the can. If not, the films will last longer if you leave them out of a can altogether, but away form other prints.
The vinegar smell is caused by the acetate based film stock breaking down and creating acetic acid fumes. This is a natural byproduct of acetate and oxygen. Properly processed and stored acetate based films can last for hundreds of years, others may start decomposing in under ten. Once it starts, it can not be stopped. The reason to keep it in a can or away from other prints, is that many feel that the acetic fumes can hasten vinegar syndrome in surrounding reels of film.
Sealing films in a can (without molecular sieves) just traps the acetic fumes in the can, hastening the destruction of the film.
If your films are not warped, and run ok now, you have a decision to make. They may last for decades before they become unrunable, or they may start warping in a year or so. Personally, I stay away from vinegar'd films, knowing that they will eventually warp, but you need to make your own decision. The seller should have informed you before the sale about any vinegar smells.
There are paper test strips that you can buy and seal into the can which will tell you after a few days how far along the reel is towards it eventual demise.
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