I'm scanning about 30 years worth of 35mm negatives. This morning I encountered several dozen rolls that were digitized onto 3-1/4" floppies. To do this, Kodak stuck some sort of masking tape to the film.
I have to remove the "masking tape" so the film fits into the scanner. This leaves a thin layer of exposed adhesive on the edges of the film. I want to remove the glue before I put the film into the scanner because I don't want to risk gumming up my scanner's film feeder with the adhesive.
So far I've been cleaning the film with Pec Pads, Pec-12, and compressed air, as needed. Pec-12 does remove the adhesive, but the process of soaking a Pec Pad with Pec-12 and rubbing the edges of the film strip is very tedious. The pad gets stuck in the film indents; have to unfold/refold the pad to get a fresh clean surface; resoak with Pec-12.
This sometimes leaves streaks on the film, and the glue tends to form into globs which I inadvertently smear over the images. I also managed to wipe off a lot of the emulsion from one strip. I don't want to repeat that.
Since the adhesive I want to remove is across the film's sprocket holes, I'm concerned that if I cover the sprocket holes the scanner won't be able to feed in the film.
So looking for a better solution, both chemical and process. What's the best way to clean the glue from the film? I read a previous answer that said to soak the film in distilled water. Is this the best method for removing glue?