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Author Topic: What can you wipe film with that wont scratch it? Phil Hill I love my cootie bug Posts: 7595 From: Hollywood, CA USA Registered: Mar 2000 posted 05-16-2003 05:38 PM                  The only time that occurs is with a rolling-loop 1570 projector when dust or other debris gets caught on the "Field Flattener". Since it is an optical lense and in the focus plane, any crap appears on the screen as a big asteroid. Those projectors have a "wiper" or other method to remove collected crap during projection so a "clean" image appears on the screen. >>> Phil  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 05-16-2003 06:19 PM                     Phil, how bad will fine scratches in the emulsion side or base side show up on the screen?  |  IP: Logged Phil Hill I love my cootie bug Posts: 7595 From: Hollywood, CA USA Registered: Mar 2000 posted 05-16-2003 06:32 PM                  As with any screen and format, it all depends on the magnification. >>> Phil  |  IP: Logged Josh Jones Redhat Posts: 1207 From: Plano, TX Registered: Apr 2000 posted 05-17-2003 12:26 AM                        I do soak the wipes in film guard before wiping the film, but it leaves these little scratches behind beacuse you have to scrub to get the gunk off. Josh  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 05-17-2003 12:31 AM                     Josh, try the duct tape approach if it is strictly a gunk problem. However, the duct tape will not remove chunks of cheap splicing tape. Those will have to be peeled off. The residue left behind can be pulled off with duct tape.  |  IP: Logged Frank Angel Film God Posts: 5305 From: Brooklyn NY USA Registered: Dec 1999 posted 05-18-2003 08:31 AM                        First and formost, I use my fingernail to remove those little bits of tape that don't come off with the main pieces as you pull. One of the old timers used a scraping device for this and I found I didn't have nearly the control of the metal tip as I wanted and gave it up in favor of my fingernail. You have no better feedback indicator than your fingertips in judging how much pressure you are applying. You can use just enough to get the little piece off without scratching or damaging sprockets walls. Then I soak ordinary cotton balls with Ecco 1500 or 1,1,1,trichlorathane, and then gently wipe the gunk until it desolves. Both cleaning solutions will dry quickly without leaving any residue. If you still see streaks of adhesive, repeat the process. These products will even desolve the most hardened, years-old adhesive gunk in just a few applications. This method has never caused any scratching. I have also read that lighter fluid desolves adhesive residue very well, but I have yet to be able to bring myself to squirt something that's designed to cause a fire, onto a piece of film. Cotton balls tend to leave fibers, so I also save my worn all-cotton tee-shirts and cut swatches that work quite well -- they don't scratch and leave very little lint behind. I have never used the duck tape method but will try it. Sounds interesting. Frank  |  IP: Logged Christopher Seo Jedi Master Film Handler Posts: 530 From: Los Angeles, CA Registered: Jun 99 posted 05-18-2003 10:12 AM                     I agree with Frank; you still have to be careful about not gouging the film, especially after cutting your fingernails (I file 'em down nice and smooth first), but I don't think there's a substitute for fingernails for peeling splicing tape. I regret that conviction after working a film festival, however.... As far as getting gunk off with a solvent, I try to let it soak in first-- the longer the better-- to minimize the amount of scrubbing I have to do.  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 05-18-2003 01:34 PM                     quote: As far as getting gunk off with a solvent, I try to let it soak in first-- the longer the better-- to minimize the amount of scrubbing I have to do. Chris has definitely nailed it. Whatever solvent you use, let it sit for a few minutes. I would recommend a specific wipe, but I don't think they are made anymore. I picked up a couple of packs of something (no idea what) at old UA theaters that had shut down and were left behind. Although that stash is diminishing, I still have a little bit of time left.  |  IP: Logged

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