my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Shedding problems! (Page 3)

This topic comprises 3 pages: 1  2  3

Author Topic: Shedding problems! John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 06-09-2006 10:09 AM                        quote: Robert Burtcher Anyone else having a similar problem, and/or anyone have any tips for fixing this problem? One likely cause of sudden shedding is that the film contacting surfaces in the gate have been damaged (e.g., a burr or rough spot), or have hardened deposits of gelatin emulsion. Hardened deposits can form when the gate is excessively hot (too hot to touch comfortably). Be sure the heat shield behind the gate is not allowing too much spill light to heat the metal gate. For larger lamps, use a water cooled gate. Clean off any hardened emulsion buildup by using a hard plastic or wood tool to scrape it off, and then a hard bristled toothbrush. A non-metallic scouring pad (e.g., 3M Scotchbrite pad) can be used to remove hardened residue, being careful not to scratch the gate rails. NEVER use a metal tool, abrasives, or steel wool, which could nick or damage the film-contacting surfaces. Excessive humidity in the projection room can soften the film emulsion and make it more likely to abrade and form hard deposits. A light coating of a hard wax like paraffin or carnauba on the film-contacting surfaces between shows can help provide additional lubrication. You are correct in using the lowest gate tension that provides a steady image, and clecking for proper clearance and alignment of the film over sprockets. The additional lubrication provided by FilmGuard or edgewax helps minimize projector abrasion of the film surface.  |  IP: Logged Carl Martin Phenomenal Film Handler Posts: 1424 From: Oakland, CA, USA Registered: Feb 2002 posted 12-31-2006 03:23 AM                        brad says of the good german in the FITA forum: quote: They should've just printed the films without putting that extra wax on it. is there any hazard that the edge wax will react in some way with filmguard and have a negative effect? who here is running filmguard on this feature? how are the results?  |  IP: Logged John Alan Petrey Film Handler Posts: 15 From: tampa, fl / United States Registered: Jul 2006 posted 12-31-2006 04:41 AM                     Lots of shedding with "THE HOLIDAY". Running "HAPPY FEET" on same projector, no problem.  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 3 pages: 1  2  3

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.