Talk:BoPET

message: can anyone talk about heat shrink properties?
also the stuff is probably bad for the environment where's the mention of that? 
Because biaxially oriented PET film is stretched, the PET molecules are under tension. Therefore they will try to shrink back to their original form when heated. This is mostly prevented by the crystallinity of the film from the "heat setting" step in manufacturing, but some residual tendency to shrink does remain. Levels of a couple percent of shrinkage can occur at high temperatures. How much the film will shrink at which temperature depends greatly on the grade of film chosen and what properties the grade is optimized for. (Magnetic tape base will be different than food packaging material, for instance.)  Cynthia Bennett 20:54, 7 November 2005 (UTC)
replies: text: Is mylar used for heat shrinking storm windows?  or is that something else? njh 08:05, 16 February 2006 (UTC)
replies: text: No, polyolefin is the polymer most commonly used for shrink wrapping -- Dogears 01:28, 17 February 2006 (UTC)
thread_title: Heat shrink properties

message: So if these aren't even mylar, why is there a pic of one on the page? i say remove it. SECProto 00:28, 16 January 2006 (UTC)
thread_title: "Mylar" balloons

message: # Insulation for houses and tents in cold environments, covering the inner walls with the metallized surface facing inward, thus reflecting heat back into the space
# Insulation for houses and tents in hot environments, covering the outer walls with the metallized surface facing outward, thus reflecting heat away from the space
I was under the impression that reflective film insulation relies more on low emissitivity than on reflecting incoming photons.  Does anyone know the truth? njh 08:03, 16 February 2006 (UTC)
thread_title:  Insulation 

message: Why does the title have this part in it when there is no PET film?  It should probably be moved again. --Rory096 19:00, 12 March 2006 (UTC)
replies: text: That's because there is also non-oriented PET film or sheet, also called APET or CPET. Nobody has written about that (yet). I guess I've just volunteered for the job, but it's too late to start today. I just got finished fixing all the internal links for boPET film and cleaning up the text of the article itself. The brand names "Mylar", "Melinex", "Hostaphan", "Estar", "Diafoil", "Lumirror" etc., etc., etc. all refer to biaxially oriented PET film.Cynthia Bennett 23:40, 12 March 2006 (UTC)
thread_title: (biaxially oriented)

message: The article needs more technical information. For example, what is the percentage of crystalization in biaxially oriented film?  The Polyethylene terephthalate article says the upper limit for PET is 60%, is it true for oriented PET films?   Also, is the Tg of oriented PET higher than un-oriented films?  Those are the things I'd like to know.   Wilsonbond 15:15, 8 November 2006 (UTC)
thread_title: Need more technical information on oriented PET films

message: http://www.madehow.com/Volume-1/Floppy-Disk.html says that Mylar is the material used for the 'disk' in a floppy disk.
That's a pretty important application that should be mentioned, no?
I know nothing about the topic, just trying to find for myself if there is any metal on such a disk, so that I can see if it is safe to put said disk and the plasic casing (without aluminum pieces, which I have removed) in my betta splendens' fish tank. Metals are supposedly deadly to them, but I can't seem to find the information.
Let me know if you know anything, hope I helped.Lackinglatin 09:22, 12 April 2007 (UTC)
thread_title:  Floppy Disks? 

message: A Google search brings up contribution of mylar insulators to tragic aircraft fires, which resulted in new regulations in 2005.  We could use a knowledgeable article about this.
I have ordered 3ml mylar film for use by my HS sophomore chem students in science fair projects.  They will be investigating applications to thermal insulation of dwellings, among other things.  Such applications heighten the need for information on flammability.  Can I even cover a display bulletin board in a classroom?  What are flammability regulations on interior and exterior use of pet films? Mporter chemtchr 03:33, 30 August 2007 (UTC)
thread_title:  mylar flammability 

message: Mporter chemtchr 18:48, 5 September 2007 (UTC)
thread_title:  Who has edited this entry? 

message: I have started a metallised films article as every mention of aluminised or metallised films directed here. Any suggestions on improvements please.  —Preceding unsigned comment added by BeamerNZ (talk • contribs) 11:57, 15 December 2007 (UTC)
thread_title:  Added metallised films article 

message: "Cosmoline's most common use is in the storage and preservation of firearms. Previously, cosmoline was used to preserve other items. Objects the size of entire vehicles could be preserved for future use with cosmoline. Due to its gelatinous nature, cosmoline can be difficult to remove completely from firearms and, as such, is being extensively replaced with vacuum-pack PET film."
Can anyone add to the article about this? I am interested in using PET film on firearms and knives. --92.19.122.170 (talk) 02:16, 15 April 2010 (UTC)
replies: text: This paragraph is focused on Cosmoline rather than PET and thus would hardly fit. Materialscientist (talk) 03:01, 15 April 2010 (UTC)

text: Ah .. maybe Firearms project knows something. Materialscientist (talk) 05:01, 15 April 2010 (UTC)
thread_title:  Cosmoline replacement 

message: It is unclear if BoPET has the same properties as ordinary PET.  The Polyethylene terephthalate (PET) article has a brief list of properties, whereas the Polyester article doesn't have any.  It would be nice to clarify this for the reader.  For an example of an extensive list of properties, see the Polycarbonate article sidebar.
WWriter (talk) 04:21, 26 March 2011 (UTC)
thread_title:  Material properties needed 

message: David Bordwell mentioned on his blog that mylar has been in use as a replacement for celluloid in 35mm film motion picture release prints - for about fifteen years now. Since this means that practically the whole analog film distribution/projection circuit relies on it, I find this a significant use that deserves a mention. Source: http://www.davidbordwell.net/blog/2012/02/28/pandoras-digital-box-from-films-to-files/
K37b8e4fd (talk) 22:59, 5 May 2013 (UTC)
thread_title:  Replacement for celluloid 

message: I've removed "to keep astronauts warm" and replace it with "help regulate temperature."  A space suit doesn't keep a astronauts warm, it keeps them from getting to too hot according to all modern literature.  Some early books on the subject do claim the suit is to keep them warm but that was incorrect.  — Preceding unsigned comment added by 59.167.182.149 (talk) 01:05, 6 April 2014 (UTC)
thread_title: Space Suits

message: One important, current use of reflective BoPET is for indoor plant growing, as it is cheap and easy to cover the walls of an enclosure or room to reflect more available light to the plants.  This is especially useful when trying to grow plants indoors but conserve as much energy as possible, as it allows for maximum light coverage if all internally-facing sides of an enclosure are covered.  Examples would be a "grow tent", "grow closet", "grow box". 134.129.187.84 (talk) 13:34, 21 October 2014 (UTC)
thread_title:  Other use of BoPET/Mylar 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: This "cute," stilted, unintelligible language needs repair:
 "...and subsequently drawn in the transverse direction, i.e. orthogonally to the direction of travel, .... Draw ratios are typically around 3 to 4 in each direction."
Even following the lazy link gave no certainty, however, I suspect "orthogonally," can be replaced with "perpendicularly?" And a draw ratio of 3 to 4!? Yer shitten me, right? Usually such strained, starchy language is employed by uncertain students and such.  Cheesh!  --2602:306:CFCE:1EE0:A47A:9AD1:8877:F265 (talk) 00:55, 15 June 2018 (UTC)
thread_title:  Poor writing; Pull the corn cob out.... 

message: A (case-insensitive) search for "BoPET" yields links with the fully-capitalized (BOPET) acronym, almost without exception. Is there a good reason the "o" is lower-case in this article? Any objection to a move to "BOPET"? —[AlanM1(talk)]— 14:24, 24 August 2018 (UTC)
thread_title:  BOPET, not BoPET or boPET 

message: An editor has identified a potential problem with the redirect :Mylar® and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 April 15#Mylar® until a consensus is reached, and readers of this page are welcome to contribute to the discussion.  BD2412 T 04:45, 15 April 2022 (UTC)
thread_title:  "Mylar®" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]]