[labnetwork] "yellow" film for windows

[Luciani, Vincent (Fed)]

Good Morning Dennis,

We also went through this process and I learned quite a bit about “architectural” films and coating versus “photographic” films and coatings.   After lots of testing we settled on a photographic darkroom film that had a cutoff wavelength of 500 nm.   610 nm and 625 nm are available as well.  The chart and link below my signature provide more detailed information.

The chart below shows various darkroom films.  We opted for the Yellow Gold 500.  The film comes in rolls and is non-adhesive.  We hired a local window tinting company to strip off any architectural films and attach the YG10 with about 4 mm wide double stick tape.  They did a great job, no wrinkles.  At first I thought a non-adhesive film was a disadvantage but I changed my mind.  A couple experts have told me that the best of films can age and eventually may start leaking UV and need replacing, so the easily removable approach sounded good.  Our films are about 4 years old and are not leaking yet but we stay vigilant.
.
Best,
Vince

Vincent K. Luciani
NanoFab Manager
Center for Nanoscale Science and Technology<http://www.cnst.nist.gov/>
National Institute of Standards and Technology
100 Bureau Drive, MS 6201
Gaithersburg, MD 20899-6200 USA
+1-301-975-2886

Any mention of commercial products is for information only; it does not imply recommendation or endorsement by NIST
[http://www.encapsulite.com/images/Safelight%20Chart.jpg]
Chart Source:  http://www.encapsulite.com/graphic-arts-darkroom-safelight-rolls-p-100401.html#1-YToyOntzOjQ6ImdyaWQiO2k6MDtzOjE1OiJleHRlbmRlZGxpc3RpbmciO2k6MDt9







From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Dennis Schweiger
Sent: Friday, February 10, 2017 11:20 AM
To: Fab Network <labnetwork at mtl.mit.edu>
Subject: [labnetwork] "yellow" film for windows

Good morning all,

we're in the process of upgrading our lighting, and correcting a couple of the "yellow" light issues we've uncovered.  We have windows within our facility that should have been covered, but weren't, and have some currently installed films that don't filter out as much UV as we'd like.  Has anyone recently worked with a film manufacturer, and found someone that can provide a roll stock material that works for them in a glass application, and something they're happy with?  The couple of places I've contacted so far are more into architectural films, so they're all over the variety of colors, but when I broach the subject of wavelength filtering to remove UV, it seems that's a "mad scientist" request.

Thank you,

Dennis Schweiger
Facilities Manager
University of Michigan/LNF
1301 Beal
Ann Arbor, MI 48109

734.647.2055 Ofc
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