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Author
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Topic: cleaning screens
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John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 04-15-2002 09:14 AM
Cleaning "gain" screens is much more problematic than a matte white screen, since the gain coatings are sprayed on and usually quite fragile. Even if you don't remove the gain coating during cleaning, you may change the surface reflection properties enough to leave a very visible mark.Best advice is to check with the screen manufacturer for recommended cleaning procedures, or hire a professional screen cleaning company recommended by others with similar screens: http://www.kodak.com/US/en/motion/newsletters/reel/december98/screenCleaning.shtml ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Research Labs, Building 69, Room 7525A Rochester, New York, 14650-1922 USA Tel: +1 585 477 5325 Cell: +1 585 781 4036 Fax: +1 585 722 7243 E-Mail: john.pytlak@kodak.com Web site: http://www.kodak.com/go/motion
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Jerry Chase
Phenomenal Film Handler
Posts: 1068
From: Margate, FL, USA
Registered: Nov 2000
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posted 04-15-2002 11:51 AM
The name you were thinking of was "Big Al" Wiggington, the harmonica playing life of the party and ShoWest showman in the Indian outfit and tux. Big Al was one of the most likable characters you could ever meet. Much of the actual screen cleaning work for Theatre Services was done by his sidekick Broken Hand. (Yes, native american as well.)Big Al had a fetish for screens being cleaned his way. After hearing the hype, and having cleaned small screens before myself, I decided to sit in one night while his crew cleaned the big screens at the Bay Harbor on Miami Beach, starting at 3 in the morning. From watching, I'll say that Broken Hand was a consumate professional with wonderful gentle technique on the aging screens there. One mistep and Al's company would have been looking at buying an expensive huge sheet of vinyl. The chemicals used were good, and removed most of the AC vent staining, and the job was very satisfactory. That said, cleaning screens is a lot less touchy than applying a finish coat of paint or laquer on furniture. The problem is, unlike a big screen, you can't easily punch holes in furniture with a paintbrush, and if you screw up cleaning a gain screen you can't sand it off and start over. In your situation, blotting the hand print with distilled water on a soft paper towel would be the first thing to try. Depending on your nerves, you could try a weak degreasing solution, such as weak spic-n-span or tsp. Weak is the watchword. Dilute to 1/4 recommended strength. You don't want any strong chemical reactions. Scrubbing of any sort will ruin the surface so you can only blot straight against the screen with very little pressure. If the problem is something on the screen, you may remove it. It the handprint scrubbed the screen, you may be screwed. Big Al's comments about screen life were huge generalizations. In some instances, yes, he was right. A theatre with bad HVAC and roof leaks can destroy a screen in a few months. Other theatres might have screens that remain clean for decades. Matte white screens can last much longer than gain screens. A toast to Big Al, probably negotiating right now for a contract to keep the sky clean.
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Frank Angel
Film God
Posts: 5305
From: Brooklyn NY USA
Registered: Dec 1999
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posted 04-16-2002 01:07 AM
Jerry, You are right, Al was one of those people who immediately made you feel comfortable....and for a New Yorker and a Brooklynite New Yorker at that, that's quite a task; we don't take easily to fast friendships. I stayed with him the whole five hours, swapped theatre war stories and by the time the sun came up, the two of us were sitting on the loading dock drinking coffee, I felt I had made a good friend in just that short amount of time and one of the few colorful characters left in the business. What amazed me was how he would clean a section of the screen and wait for it to dry, then look at it with a knowing eye that only comes from years of working at his craft. He would pause and say, "nope, it ain't there yet," and go back and respray his "secret chemical compound" and do it again. He wasn't looking to see if I, the client, was happy -- hell, he knew I didn't know sh*t from shinola about cleaning a screen. He could have lifted that heavy "screen mop on its 20ft pole, done it once and said, "there, it won't get cleaner than that." But instead he was evaluating his own work and measuring it against his knowledge. He cleaned on section over and over again....I got tired just watching him. How many people today do that? He was quite remarkable and I was so impressed that I told everyone the next day in the office what a experience it was meeting this great old guy all the way from Texas, come to clean our screen! You can imagine how shocked I was when I called the company just a few weeks later and found out the sad news.
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