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This topic comprises 2 pages: 1 2
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Topic: What is Scotchguard?
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John Walsh
Film God
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Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999
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posted 02-20-2001 02:00 PM
It was not widely used, at least not in the US. I only saw one print with it (a Woody Allen film, forget the title.) You needed special splicing tape; regular tape wound not stick to it. In fact, very little would stick to it, including dirt. At the time (about 15 years ago) we dunked a short length from the tail leader into old pizza sauce, soda, etc. It was weird how nothing would stick. I remember thinking how someone will be digging this stuff 2000 years form now, because it will never go away! You could see a texture to it, sort of like brush strokes, when the light reflects off of the film. Didn't see anything on screen, though. Scotchguard and Film Guard were made for different purposes; Scotchguard kept the film from getting dirty, Film Guard cleans the film if it gets dirty. I never heard of Scotchguard damaging film; My understanding is/was it was just too expensive to use on new prints, where 90% of the prints just get thrown away after the initial release. It was also expensive to treat older prints, because they must be cleaned throughly before applying the Scotchguard. Usually, no one wants to put any money into maintaining old prints.
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Ken Layton
Phenomenal Film Handler
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Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999
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posted 02-20-2001 02:55 PM
Scotchguard is what used to be called 3M Photoguard. It was a hard coating applied to reduce scratching to prints. Evidently it sealed the film so well that vinegar syndrome was accelerated on Photoguarded prints because the film couldn't breathe!In the days before Polyester prints some distributors payed extra for the Photoguard treatment with acetate prints they thought would get extended runs in theaters. Filmack Studios was a big proponent of Photoguarding their snipes and datestrips.
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Joe Redifer
You need a beating today
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Posts: 12859
From: Denver, Colorado
Registered: May 99
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posted 02-20-2001 07:11 PM
"Scotchguard and Film Guard were made for different purposes; Scotchguard kept the film from getting dirty, Film Guard cleans the film if it gets dirty."I must disagree here. Filmguard is made to improve the presentation of any theatre, primarily by keeping prints clean from the get go. You can use it effectively to clean dirty prints, yes, but it was made to stop the cause, not treat the symptom. Scotchguard (and its evil twin Imageguard) to my understanding exist to "rejuevenate" prints. It is applied only to the base side only (really helpful for preventing emulsion scratches). It does run through the projector louder and rougher. Many of the treated prints often shed like no tomorrow, actually making the onscreen presentation much dirtier and far worse. In its defense, it is near impossible to put a scratch on the base side of a treated print. And John is definitely right... it's impossible to remove!
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